It is not possible to generalize how long laryngitis usually lasts, it usually lasts longer than three months in case of chronic laryngitis and may last around 1 week in case of acute laryngitis. Causes and triggers of pharyngitis should be avoided to avoid recurrence. Chronic pharyngolaryngitis is a chronic inflammation of the pharyngeal mucosa, submucosa and lymphatic tissues, this disease has a long course and is prone to recurrent episodes, the course of the disease is generally longer than three months or more, the more typical symptoms are dry throat, burning sensation in the throat, itchy pharynx, coughing, pharyngeal foreign body sensation, the treatment generally requires topical medication. Acute pharyngolaryngitis is often caused by viral infections, bacterial infections and physical factors such as high temperature and dust aversion. Initially, the pharynx is dry and burning, followed by sore throat, and in severe cases, fever, headache, loss of appetite and limb pain. Treatment requires antivirals and antibiotics, and topical medication. Relief can usually be achieved within a week or so. Do not recommend self-medication to treat laryngitis, to avoid blind use of drugs on the body damage, we should promptly go to the appropriate department of the hospital, under the guidance of the doctor to complete the relevant examinations, standardized treatment, in the weekdays should pay attention to drink more water, a balanced diet, do not eat spicy, stimulating food, avoid smoking, avoid alcohol, away from dust and stimulation of the environment.