Itchy dry cough in the throat, no effect of medication, need to first clarify the cause of the disease, according to the cause of targeted medication or can achieve better therapeutic results. This symptom is common in cough variant asthma, chronic pharyngitis, reflux pharyngitis and other diseases, according to the cause of the disease and the degree of symptoms to choose systemic and local treatment to control symptoms. 1. Cough variant asthma: mainly manifested as irritating dry cough, with nocturnal cough as an important feature. The main therapeutic drugs include beclomethasone, budesonide, fluticasone, etc. Salbutamol, montelukast, aminophylline, etc. can also be used. 2. Chronic pharyngitis: mostly manifested as foreign body sensation, itching, burning and dryness in the pharynx, which may be accompanied by cough. Commonly used compound borax gargle solution, furacilin gargle solution, 10% silver nitrate solution, vitamin A and other drugs. 3. Tuberculosis: mainly manifested as cough, sputum, hemoptysis and chest pain, but also dry cough, throat itching and other symptoms. The main treatment drugs are isoniazid, rifampicin, pyrazinyl, ethambutol and so on. It is recommended that patients go to the hospital in a timely manner to clarify the cause of the disease. If you need to use drugs, you need to use under the guidance of a doctor.