The difference between allergic laryngitis and chronic laryngitis lies in the cause, course, symptoms and treatment of the parents. 1. Etiology: the etiology of allergic laryngitis is mainly caused by contact with allergens such as pollen; the etiology of chronic laryngitis includes allergies but is not limited to allergies. 2. Disease duration: allergic laryngitis is often divided into seasonal and perennial attacks; chronic laryngitis symptoms are stubborn, can be a long period of time, can also be caused by triggers, recurrent attacks have no specific pattern. 3. Symptoms: Patients with allergic laryngitis often have symptoms such as itchy throat, dry throat and cough. Chronic pharyngolaryngitis patients often have a foreign body sensation in the throat, itching or slight pain, and some patients may be accompanied by irritating cough and nausea. 4. Treatment: The key to the treatment of allergic pharyngolaryngitis is to get rid of the allergens, which can be applied to control the allergic symptoms with drugs such as loratadine and montelukast. The key to the treatment of chronic pharyngolaryngitis is to remove the chronic irritating factors, such as active treatment of rhinitis and other respiratory tract inflammation, anti-infective treatment and the use of laryngeal tablets, borax gargle, gargling and other symptomatic treatment. If there is any discomfort in the throat, it is recommended to consult a doctor in time for a clear diagnosis after a systematic examination.