Laryngeal diseases, especially vocal cord diseases often affect vocalization, the following are their performance and treatment: 1. Acute laryngitis is an acute catarrhal inflammation of the laryngeal mucosa, often secondary to acute rhinitis, sinusitis, acute pharyngitis, as part of the entire upper respiratory tract infection, but can also occur alone. Sometimes acute laryngitis can be caused by shouting, excessive use of the voice, or violent coughing. If it occurs in children, the condition is more serious. The main symptom of acute laryngitis is hoarseness. In mild cases, the voice loses its roundness and clarity, and the pitch becomes lower and coarser, while in severe cases, the voice is hoarse or even completely lost. Coughing with sputum, often coughing up a small amount of white or yellow sticky sputum, which is thicker and often not easy to cough up, adheres to the surface of the vocal cords and aggravates hoarseness. The laryngeal pain is aggravated during vocalization, but does not prevent swallowing. Indirect laryngoscopy reveals chronic congestion and swelling of the laryngeal mucosa, and the vocal cords are also red. Treatment: Systemic treatment: If the condition is severe and there are obvious systemic symptoms, appropriate rest should be given and antibiotics and hormones (prednisone, etc.) should be given. Local treatment: Compound benzoin tincture steam inhalation, 3 to 4 times a day (steam inhalation therapy with a cup of hot water, a dry towel, put the dry towel around the mouth, nose and the mouth of the cup, open the mouth and breathe slowly. The temperature of the steam should not be too high to prevent burns. After treatment a little rest before going out, so as not to get cold); nebulized inhalation: antimicrobial solution plus hormone solution (or add a little epinephrine, 1% ephedrine). Patients should prohibit smoking and alcohol, do not eat irritating food, less speech, in order to facilitate the inflammation to subside. 2, chronic laryngitis is a common laryngeal disease, mainly manifested as chronic inflammatory lesions of the vocal cords, ventricular zone. The cause can be recurrent acute laryngitis, without proper treatment; long-term inappropriate pronunciation or excessive use of voice; often suffer from the stimulation of harmful gases, dust or excessive smoking and alcohol. It can be divided into chronic simple laryngitis, hypertrophic laryngitis, atrophic laryngitis, and: etiological treatment: proper voice abstinence, avoid excessive use of the voice, quit smoking and drinking, and actively treat adjacent organ lesions. Steam inhalation and nebulized inhalation to eliminate inflammation. After long-term clinical observation, chronic laryngitis usually does not transform into cancer. However, patients who continue to be exposed to certain irritating substances, especially long-term smokers over 40 years old, may have laryngopharyngeal cancer and laryngeal cancer due to precancerous lesions such as abnormal proliferation and white spot formation in the mucous membrane of the throat. 3. Vocal cord polyp is a grayish white, smooth surface polyp-like tissue that occurs in the front and middle edges of the vocal cords, mostly single on one side, but also bilateral or multiple, with a tip or wide base, often grayish translucent, or a small red protrusion, with a tip often move up and down with breathing, and the large ones can block the vocal cords to cause breathing difficulties and affect pronunciation. The position is located in the junction of the front and middle third of the vocal folds, mainly manifested as hoarseness, 4, vocal fold nodules, also known as singer’s nodules, located in the free edge of the junction of the front and middle 1/3 of the vocal folds on both sides, is symmetrical nodular small protrusions, white, hard texture. The nodules are white, hard and nodular. They are mainly found in people who use their voices excessively and inappropriately, and mainly manifest as hoarseness, which is often light in the morning and heavy in the afternoon; light when speaking less and heavy when speaking more. The hoarseness is intermittent at the beginning and becomes persistent over time. Increased laryngeal secretions: Patients often feel that there is phlegm attached to the larynx, and the larynx is dry and uncomfortable, but the phlegm is sticky and not easy to cough up. Treatment Generally, the vocal cord nodules in children can be left alone, while adults with nodules or polyps usually have to be treated by surgery. After the surgery, the voice should be routinely abstained for 2-3 weeks, and attention should be paid to the articulation method and avoid excessive vocalization to prevent recurrence. (1) Vocal fold nodules or polyps should be removed through indirect laryngoscope under local anesthesia (for patients with inconspicuous pharyngeal reflex, clear exposure and small base); (2) For patients who cannot cooperate with the treatment under local anesthesia, laryngoscopic resection should be performed under general anesthesia. The surgery should pay attention to the fact that if the anterior mucosa of bilateral vocal folds cannot be damaged at the same time, otherwise it can cause vocal fold adhesions.