On the other hand, laryngitis is the inflammation of the larynx/voice box, which is part of the airway system. Chronic laryngitis is an inflammation of the voice box that lasts for more than 3 weeks. People at greatest risk for developing laryngitis are those with an upper respiratory infection. The most common form of laryngitis is an infection caused by a virus. Laryngitis is an inflammation of your larynx (voice box) or vocal cords. Staying well hydrated helps your vocal folds when you have laryngitis, Klein says. The main symptoms of laryngitis are a hoarse voice, also known as dysphonia, and sore throat, due to inflammation in the laryngeal area. inflammation of the mucous membrane of the larynx, characterized by dryness and soreness of the throat, hoarseness, cough, and dysphagia. Applicable To. The larynx contains the vocal cords. As a result, it is what doctors call a non-specific term, or a somewhat generic diagnosis. When the vocal cords become inflamed or infected, they swell. Prolonged mouth breathing of cold air flows. You’re more likely to experience fever, cough, headache, and fatigue related to COVID-19 than laryngitis. Hoarseness. 2023/2024 ICD-10-CM Index › 'L' Terms › Index Terms Starting With 'L' (Laryngitis) Index Terms Starting With 'L' (Laryngitis)Practice Essentials. Pharyngitis and tonsillitis are throat infections that cause inflammation. Inflammation results in swelling and irritation of surrounding structures, which is why you feel hoarseness in your voice and soreness in your throat. Laryngitis is inflammation of the larynx (voice box). Laringitis - uzrok. Laryngitis. The vocal cords, responsible for setting. The commonest germ causing laryngitis is a virus (viral laryngitis) although bacteria and fungi can also be causes of laryngitis. Laryngitis is an inflammation of the voice box, or larynx and the vocal cords. A secondary objective was to report the rates of adverse events. Closing the airway during swallowing to prevent aspiration. Sementara laringitis terjadi ketika pita suara mengalami peradangan atau teriritasi, sehingga menyebabkan suara menjadi serak. It can also be related to other causes like allergies, pollution, or tumors. It is usually temporary and has no serious consequences. You might not have typical acid reflux symptoms, like heartburn or indigestion. The biggest difference is the shortness of breath associated with COVID-19. cough. Laryngitis that lasts longer than 3 weeks is known as chronic laryngitis. Laryngitis is one of the most common causes of hoarseness. It can also come. Check if you have laryngitis. Acute laryngitis. LPR can be the underlying cause of hoarseness, laryngitis, chronic throat clearing and related symptoms. It's important to seek medical attention if you experience new symptoms. Humidificación (con humidificadores ambientales o con vahos. Cheering or yelling can affect your voice. This could be a number of things such as laryngitis, pharyngitis, sinus drainage, tonsilitis or strep throat. Laryngitis (1) is the inflammation of the larynx due to an infection or irritation. Laryngitis occurs when your voice box or vocal cords become inflamed from overuse, irritation, or infection. These infections are spread by close contact with others. In most cases, it gets better without treatment in about a week. Water is best for avoiding dehydration. As a result, irritation, swelling and inflammation occur. The nodules most often form on parts of the. If you're. Cuando estas resultan inflamadas o infectadas, se hinchan. 0 became effective on October 1, 2023. 症状. Policy. Laryngitis is an inflammation of the voice box (vocal cords). It is characterized by varying degrees of inspiratory stridor, barking cough and hoarse voice, resulting from upper airway obstruction usually caused by an acute viral infection. Try adding half a teaspoon of salt to an 8. It may cause symptoms like a sore throat, cough, problems swallowing, and usually, a fever. Get plenty of sleep. RSV also has quick onset of rapid breathing or wheezing. Sore throats are rarely fatal anymore, but there is really no such thing as “just a sore throat. This means no talking at all, including whispering, clearing your throat, and coughing. Laryngitis: Inflammation of the larynx (voice box) that can occur due to an infection and cause hoarseness or loss of voice. Accompanying signs of infectious laryngitis include odynophagia, cough, fever, and respiratory distress. Laryngitis makes the vocal cords swell, changing the way they vibrate and the sound of the voice. The larynx is the voice box. Pharyngitis — commonly known as sore throat — is an inflammation of the pharynx, resulting in a sore throat. Laryngitis is the inflammation of the vocal cords, which can cause a sore throat and vocal changes. The Omicron variant seems to affect predominantly the upper airways and cause acute laryngitis without olfactory dysfunction. Reflux laryngitis is inflammation of the voice box (larynx) caused by stomach acid backing up into the esophagus (acid reflux, gastroesophageal reflux disease, GERD). 0 - other international versions of ICD-10 J04. Request an appointment See moreLaryngitis is inflammation of your voice box (larynx) that causes hoarseness, cough, and swollen glands. Acute laryngitis is a common, self-limited condition lasting less than three to four weeks. The approach to the adult who presents with hoarseness will be reviewed here. Sucking on lozenges. 529 variant (omicron) was first reported in South Africa. La laringitis es una irritación o afectación inflamatoria de la laringe, que puede ser transitoria (aguda) o crónica. This reflects a variety of complaints including vocal tremor, weakness, fatigue, altered pitch, breathiness, or strained voice quality. It is most commonly a temporary issue that lasts 3–7 days and goes away. With laryngitis, your vocal cords swell and become irritated. This type of laryngitis is generally caused by exposure to irritants over time. Drosera: one of the top rated homeopathic medicine for laryngitis with a nagging cough. Laryngitis may also be caused by a long period of screaming, yelling or singing very loudly. When the vocal cords become inflamed or infected, they swell. ICD-10 code J04 for Acute laryngitis and tracheitis is a medical classification as listed by WHO under the range - Diseases of the respiratory system . Since the late 1960s, gastroesophageal acid reflux has been implicated in the pathogenesis of several extraesophageal disorders, including laryngitis. Yes, this is 100% contagious on its own. It can affect people of every age and gender, but is more common in men of middle age. If. If you have both, it’s called pharyngotonsillitis. 2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Strep throat — Approximately 10 percent of adults with a sore throat have strep throat. Pharyngitis is inflammation of the walls of the throat (pharynx). Resting your voice. When you cough, your vocal cords in the larynx, or voice box, constrict. This fairly common condition often causes hoarseness or loss of. Some viruses cause a fever and can make you feel quite ill. Takeaway. The 2024 edition of ICD-10-CM J04. Breathing humidified air. The latter one is caused due to irritation and swelling of the vocal cords. Laryngitis is an inflammation of your larynx, commonly called your voice box. noun. Check if you have laryngitis Laryngitis. Typical symptoms include hoarseness and loss of voice. It’s caused by a viral upper respiratory tract infection or a one-time event that caused a strain on your vocal cords. frequent urge to urinate. laryngitis meaning: 1. Mayo Clinic has one of the largest and most experienced practices in the United States, with campuses in Arizona, Florida and Minnesota. Solutions for nebulizer with laryngitis are usually prepared on the basis of saline. A cough, sore throat, or loss of taste and smell may raise concerns about a possible COVID-19 infection. Treatment for upper respiratory infections often includes rest, fluids and over-the-counter pain relievers. The larynx is an organ in the respiratory tract that lies between the trachea and pharynx. inflammation of the larynx, often with accompanying sore throat, hoarseness or loss of voice, and dry cough. HZI is caused by reactivation of latent varicella-zoster virus []. The larynx is the voice box that allows us to speak, shout, whisper, and sing. Acute laryngitis. LPR can be the underlying cause of hoarseness, laryngitis, chronic throat clearing and related symptoms. Most cases of laryngitis get better in a few days by resting your voice and hydrating yourself. Check if you have laryngitis. In the meantime, do the following things:Laryngeal paralysis is a condition that causes dysfunction of the larynx causing reduced ability to breathe deeply and can obstruct the airway. Hoarseness or aphonia. Top grade Homeopathic medicines for laryngitis are Argentum Met, Causticum, Phosphorus, Drosera and Carbo Veg. Let cool for 30 more minutes, strain, and drink 1/2 to 1 cup three to five times a day. Laryngitis may accompany infectious rhinotracheitis and calicivirus infection. Laryngitis is inflammation of the voice box, or larynx. The most common variant is acute viral laryngitis. Since laryngitis is associated with other conditions, like a cold or flu, other symptoms may be. Laryngitis is when your voice box or vocal cords in the throat become irritated or swollen. Most home remedies don’t work for your voice. [1] Acute Laryngitis is often a mild and self-limiting condition that typically lasts for a period of 3 to 7 days. Laryngitis may be acute or chronic, infective or inflammatory, an isolated disorder, or part of systemic disease, and often includes symptoms such as hoarseness. The 2024 edition of ICD-10-CM J37. The larynx, commonly called the voice box, is a cartilage encased organ with three critical functions: The production of sound. Laryngitis occurs in two forms, acute and chronic. También puede ser provocada por: Alergias. Drink the mixture throughout the day for a healthy boost. Gargling salt water might help alleviate symptoms of laryngitis. . Most drugs are diluted in a ratio of 1: 1 or 1: 2. The symptoms are often described as the recent onset of hoarseness or a husky voice with decreased voice projection often associated with a dry cough. Laryngitis is a diagnosis of history and examination, rather than laboratory testing. “The virus itself causes inflammation,” he says, “but it’s a lot of the secondary symptoms. Hoarseness and loss of voice may also occur. In some cases, this can also contribute to insomnia. Key points about pharyngitis and tonsillitis. Laryngitis can be acute or chronic. And it’s the perfect time to remember to drink those eight 8-ounce glasses daily that health experts recommend. Simple laryngitis is usually associated with the common cold or similar infections. Croup also causes a cough that sounds like barking. Diseases that affect the airway can be life threatening. 在大多数情况下，喉炎症状是由于病毒等一些微生物所致，持续不到几周。. Broj oboljelih obično raste u jesen i zimu. Laryngospasms are rare and typically last for fewer than 60 seconds. Until mid-2021, COVID-19 infection was characterized by lower respiratory tract infections, such as fever and cough, with olfactory or taste disturbances. 喉炎的体征和症状可能包括：. Chronic laryngitis is an inflammatory condition affecting the larynx (voice box) which persists for more than three weeks. The symptoms are more severe in. Laryngitis is when your voice box or vocal cords in the throat become irritated or swollen. [1] Acute Laryngitis is often a mild and self-limiting condition that typically lasts for a period of 3 to 7 days. And if you suffer from gastroesophageal reflux disease. The most common cause of laryngitis is a viral upper respiratory infection. Laryngitis occurs in two forms, acute and chronic. Laryngitis is contagious if it is caused by an infection. This is known as laryngitis. Restrict chocolate, mints, fats, citrus. Additional signs and symptoms of laryngitis in adults may include dry, sore throat, pain with swallowing, and a feeling of fullness in the throat or neck. Causes of throat pain include flu, common cold, bacterial infections, allergies, smoke, GERD or tumor. For more severe cases caused by GI or environmental issues, medications, or even voice. Treatment for laryngitis includes avoiding strain on the voice, drinking plenty of water, and keeping the air moist. [ 1] Acute laryngitis has an abrupt onset and is usually self-limited. — Korin Miller, Health, 31 Oct. 1 - other international versions of ICD-10 J37. Laryngitis is inflammation of the larynx, usually the result of a virus or overuse. laryngitis. This may change how your voice sounds, or you may lose your voice for a short while. Laryngitis is called acute if it lasts for three days or less or chronic when it lasts over three weeks. These symptoms are more common in children and adolescents ages 14 and. [] These patients. Acute laryngitis can develop from overusing your voice or from a common cold virus. 2 Read on to learn more about the connection between having a hoarse voice and COVID-19. Most cases of laryngitis come on quickly and are cleared up in a few days to two weeks. The larynx holds your vocal cords. Contact your veterinarian whenever you notice hoarse meowing in your cat or. Laryngotracheitis (croup) : Laryngotracheitis (or laryngotracheobronchitis, LTB) is an acute respiratory illness that involves infection of the larynx and the tracheobronchial tree. Allergies can also lead to acute episodes of laryngitis. Acute laryngitis typically is a brief illness producing hoarseness and a sore throat. J04. This type occurs from a bacterial infection of the larynx, and the symptoms that follow are usually fever, pain, nasal discharge, and difficulty swallowing. Chronic laryngitis can cause vocal cord strain and injuries or growths on the vocal cords (polyps or nodules). Thus, pharyngitis is a symptom, rather than a condition. 0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Most cases happen during the winter or colder months. Laryngitis can be short-term or long-lasting (chronic). The most common symptoms of laryngitis are hoarseness, loss of voice, and throat. As such, when laryngitis persists, be aware that this may indicate a more significant medical problem. A single dose of dexamethasone,. Warm fluids can help soothe sore throats and coughs as well as help you avoid further voice strain. Symptoms often include a hoarse voice and may include fever, cough, pain in the front of the neck, and trouble swallowing. agentes irritantes. Symptoms of laryngitis include a low, hoarse voice, difficulty speaking, sore. The causes of acute (short-term) and chronic (longer lasting) laryngitis differ. This is the American ICD-10-CM version of J04. Laryngitis is defined as inflammation of the larynx, typically resulting in huskiness or loss of the voice, harsh breathing, dysphonia, and/or a painful cough. Perhaps the corticosteroid drips down into the throat area as the cause. The most common variant is acute viral laryngitis. The larynx is a deeper area of the respiratory system, so the complications that can derive from this disorder are usually more serious than those of pharyngitis. hoarseness. There are infectious and noninfectious causes, both of which can cause you to lose your voice. These exercises should be done frequently throughout the day, but for no longer than 10 minutes at a time. puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue. 10 It is often found in conjunction with a sore throat, or pharyngitis. Inflammatory processes that affect the unified airway can concurrently exert significant influence on the larynx and surrounding mucosal surfaces. An upper respiratory infection affects the upper part of your respiratory system, including your sinuses and throat. Laser surgery removes the tumors, but they often come back. It is caused by an illness or vocal strain and is a temporary condition. You should feel some improvement within 24 hours. [ lar- uhn- jahy-tis ] show ipa. Salt water can help kill harmful bacteria and may reduce pain. These happen when germs infect the lower airways. The factors in the emergence and development of laryngitis. Allergies can also lead to acute episodes of laryngitis. If an individual has ever had an aching throat and neck and lost their voice while they were sick, laryngitis could likely have been the reason. This fairly common condition often causes hoarseness or loss of. Wheezing or panting may also be present. loss of voice. Causes. It's also called laryngeal dysfunction, paradoxical vocal cord movement disorder or paradoxical vocal fold motion. Pita suara yang membengkak juga mungkin menyebabkan gangguan pernapasan karena menghalangi. As you decide which fluids to add into your day, aim to drink warmer fluids. The National Center for Homeopathy, claims this homeopathic remedy to be good for "Laryngitis from exposure to cold, from paralysis of laryngeal. Esto puede causar ronquera. Most cases are acute and go away in 3 weeks, but sometimes it lasts longer and becomes chronic. No, laryngitis typically does not cause permanent voice loss. The larynx is a framework of cartilage, muscles and mucous membranes that forms the entrance of your windpipe (trachea). Symptoms that accompany pharyngitis vary depending on the underlying condition. 1. This type of laryngitis is generally caused by exposure to irritants over time. It accompanies most upper airway viral and bacterial respiratory infections. Information regarding clinical presentation and course was collected. Laryngitis is an inflammation or infection of the voice box (larynx) and the vocal cords it contains. These injuries can be caused by:Laryngitis is the most common of laryngeal conditions. Common Illnesses That Cause Laryngitis. It can cause you to become hoarse or lose your voice. Drink Soups. Laryngeal injuries are common after endotracheal intubation, which could manifest as varying degrees of edema, ulceration, granulation, and restricted vocal cord mobility, often resulting in luminal narrowing. The voice box (larynx) is located at the top of the airway to the lungs (trachea). Laryngitis may accompany infectious. Chapters0:00 Introduction0:29 Causes of Laryngitis 1:37 Symptoms of Laryngitis 1:55 Diagnosis of Laryngitis 2:47 Treatment and Medication of Laryngitis Lary. Laryngitis Definition Laryngitis is caused by inflammation of the larynx, resulting in hoarseness of the voice. [ 1] Although the cause-effect relationship has been strengthened by more recent evidence, the body of evidence on causation, diagnosis, and treatment of these. To prepare the tea, cut a fresh 1- to 2-inch gingerroot into thin slices and place in 1 quart boiling water. It occurs primarily in feedlot cattle 3–18 months old; however, cases have been documented in calves as young as 5 weeks and in cattle as old as 24 months. Acute laryngitis is a one-off affliction. 1. Once the water reaches a rolling boil, remove from heat and add 2-3 drops of your desired essential oils. Laryngitis is when your voice box (larynx) becomes inflamed, and your vocal cords become swollen. Most cases of laryngitis are short-lived and improve when the underlying cause gets better. Knowing whether your sore throat is viral or bacterial is usually determined by symptoms. Acute laryngitis. Laryngitis can be caused by viral or bacterial infections, but it’s most often caused by. Is there an accompanying cold or change of voice. Upper respiratory infection symptoms include a runny nose, sore throat and cough. Practice Essentials. In acute laryngitis there is a swelling of vocal cords that impairs the normal vibration. Laryngitis occurs when the larynx become. A cough, sore throat, or loss of taste and smell may raise concerns about a possible COVID-19 infection. , laryngitis identified with erythema, edema, redundant tissue, or surface irregularities). 咽喉发痒和疼痛. In addition to a sore, dry, or scratchy throat, a cold or flu may cause: sneezing. Laryngitis is a condition that causes inflammation in the larynx or voice box. This helps your body fight off the virus. As a result, this causes your voice to become. Choose the appropriate form of communication. If it happens suddenly, it's called "acute" laryngitis. Your larynx is near your pharynx, just above your windpipe. Leave the skin on the potatoes while mashing for a rich source of magnesium, vitamin C, and antioxidants, which all support a strong immune system. The viruses that cause. See a doctor or medical professional. It can be acute, meaning it can occur suddenly, and it only lasts for a few days. Calicivirus infections in cats may cause lesions of the mucous membranes in the mouth and throat. Symptoms may vary from degree of laryngitis and age of the person (laryngitis in infants and children is more commonly caused by croup). It can cause hoarseness and other symptoms. The most common etiology for acute laryngitis is an infectious source, usually a viral upper respiratory tract infection. hoarse voice. The most common form of laryngitis is an infection caused by a virus. Symptoms of acute laryngitis. If you're. Description When air is breathed in (inspired), it passes through the nose and the nasopharynx or through the mouth and the oropharynx. Los signos y síntomas de la laringitis pueden incluir lo siguiente: Ronquera. So I'm sitting here with my guitar and laryngitis, and I can barely speak. Certain diseases like laryngitis or edema are more likely to occur in younger dogs, while other conditions such as a laryngeal tumor or laryngeal paralysis are more common in older pets. Other causes are much less common. Laryngitis. Chronic symptoms are those that last 2 weeks or longer. During a laryngitis period, it is important to call your health care provider to ask for management strategies as each individual’s symptoms and history are different. 0 may differ. The voice box (larynx) is located at the top of the airway to the lungs (trachea). Laryngitis happens when your voice box, or larynx, becomes infected, irritated, or inflamed. Laryngitis is an inflammation or infection of the larynx and the vocal cords . The most common epiglottitis symptoms include: Severe sore throat. Drinking fluids and keeping your throat hydrated and lubricated is important for a quick recovery, Comer says. It usually goes away by itself within 1 to 2 weeks. Bottom Line. Acute laryngitis may have infectious or non-infectious causes, including overuse of the voice which puts a strain on the vocal cords, or gastrointestinal reflux disease (GERD); laryngitis caused by. Advertisement. Bacterial and viral sore throats. 2 - other international versions of ICD-10 J04. headache. It may result from upper respiratory tract infection or by direct irritation from inhalation of dust, smoke or irritating gas, or foreign objects. Pharyngitis is defined as an infection or irritation of the pharynx or tonsils (see the image below). Croup is a common respiratory tract infection of infants and children younger than 6 years of age, with a peak incidence between 7 and 36 months. Cover the pot and simmer on the lowest heat for 30 minutes. You can have a sore throat for many reasons. This type of laryngitis is often accompanied. As a result, your airway becomes temporarily blocked, making it difficult to breathe or speak. Damage to the larynx. Voice change caused by laryngitis, or. To sum it up, the main difference between pharyngitis and laryngitis is the area of the throat that is affected. Laryngitis results from inflammation of the larynx, near the very top of the windpipe, called the voice box. Laryngitis symptoms include a raspy voice, losing your voice completely, coughing, trouble swallowing, a dry or sore throat, a tickling, scratchiness in the throat, a constant urge to clear the throat, postnasal discharge and fever. Short-term vocal abuse (e. These are both connected to the larynx, a tube made of cartilage. 1 became effective on October 1, 2023. Some. This inflammation can change the way your vocal cords vibrate, causing changes to your voice. Laryngitis can occur with any of those viruses. Peradangan di pita suara bisa disebabkan oleh infeksi virus, iritasi, atau penggunaan pita suara secara berlebihan. While laryngitis can be a sign of a more serious condition, like the flu, it can also occur from overuse, like cheering at a concert or spending the day lecturing. Although these natural remedies haven't been scientifically studied for their effects on laryngitis, practitioners of alternative medicine often. Yes: Whooping cough, or pertussis can cause excessive, protracted coughing. 6. ( 21) Laringitis (upala glasnih žica) je česta dečija bolest koja se najčešće javlja u poznoj jeseni, tokom zimskih meseci i u rano proleće, kada su česte temperaturne varijacije. Laryngitis. Laryngitis. The ENT specialist told Fox News that laryngitis is still the more common presentation and typically gets better in most patients within the 10-14-day period. Pada anak-anak,. It may also occur secondary to. Laryngitis manifest quickly with symptoms that may last for a few days or a couple of weeks. Stir until the honey is completely dissolved. It can be triggered by infections, overuse, or other factors. When the vocal cords, which are part of the larynx, become inflamed, they swell and cause hoarseness and distortion of the voice. Ova vrsta upale može se prepoznati po gubitku glasa, poteškoćama u glasnicama i promuklosti. Laryngitis is an inflammation of the larynx, the "voice box" that contains the vocal cords in the upper portion of the neck. Drink warm liquids. Laryngitis is an inflammation of the larynx, the "voice box" that contains the vocal cords in the upper portion of the neck. For more severe cases caused by GI or environmental issues, medications, or even voice. You may be advised to use certain drugs, remove triggers, or have surgery to treat the problem. In my opinion, humming is the best way to exercise your voice when dealing with laryngitis. If you. Laryngitis that lasts longer than 3 weeks may be caused by irritation. In other words, if laryngitis is caused due to viral or bacterial infection, the condition can be contagious. Gargling salt water. Laryngitis. Gargling with warm salt water is a time tested natural remedy to heal irritated and sore throat. As the name suggests, laryngitis is an inflammation of the larynx, a cartilaginous organ located in the throat. Rhinitis, pharyngitis, sinusitis, epiglottitis, laryngitis, and tracheitis are. So we cannot tell what is worse because both conditions are self-limiting if it is from a viral infection, but if it is from a bacterial infection it can. Pharyngitis is the inflammation of the mucous membranes of the oropharynx. Bronchitis may also cause a sore throat and wheezing. The etiology is usually infectious, with most cases being of viral origin and most bacterial cases attributable to group A streptococci (GAS). You may experience hoarseness or lose your voice (get laryngitis) when the tissue covering your vocal cords becomes inflamed or swollen. Difference Between Laryngitis and Pharyngitis. Laryngitis usually comes on suddenly and gets worse during the first 3 days. Often, the first thing you notice is a change in your cat’s meow (they may even lose their voice!), as well as other signs of a sore throat, such as a dry cough. However, if you do have symptoms, the most common ones may be: difficulty breathing. Accompanying signs of infectious laryngitis include odynophagia, cough, fever, and respiratory distress. Depending upon the degree of inflammation , the voice may become mildly hoarse, and may lead to temporary loss of voice. Pharyngitis in dogs is an upper respiratory condition when the pharynx, otherwise known as the walls of your dog’s throat, becomes swollen from either a viral or bacterial infection like distemper or gum disease, cancers of the mouth, or injury. Breathing in things that irritate your throat, such as cigarette smoke. 4. In most cases, it is caused by an infection, either bacterial or viral. Laryngitis is when your voice box (larynx) or vocal cords become inflamed from infection, irritation, or being overused. If you find this doesn’t happen, see a doctor to identify any underlying complication such as an infection which will need treating with medication. a painful swelling of the larynx, usually caused by an infection 2. Laryngitis is an inflammation of the larynx. Unlike pharyngitis, an affected individual loses the ability to speak until they get better. The most common causes are a viral infection or vocal strain, but it can also.