Suddenly very itchy throat violent cough, commonly associated with cough variant asthma, acute laryngitis, allergic cough, etc., it is recommended that patients go to the hospital in a timely manner, to clarify the cause of the disease, the cause of treatment. 1. Cough variant asthma: mainly manifested as irritating dry cough, usually more violent cough, night cough is its important feature. Beclomethasone, budesonide, fluticasone, salbutamol, salmeterol and other drugs can be used for treatment. 2. Acute laryngitis: It is mainly characterized by hoarseness, cough, sore throat, and also laryngeal discomfort, dryness and itchiness. Prednisone, dexamethasone and other glucocorticosteroids can be used to treat, if accompanied by infection, penicillin, ribavirin and other drugs can be used to treat. 3. Allergic cough: patients may manifest as skin papules, red eyes, runny nose, and in severe cases, irritating cough and laryngeal edema may occur. Beclomethasone dipropionate, fluticasone propionate and loratadine, ebastine, cetirizine, phenylephrine and other drugs should be used. It is recommended that the patient go to the hospital in time to get a clear diagnosis and cause of the disease, and actively treat the cause and symptoms. If you need to use drugs, you need to use under the guidance of a doctor.