Dry and itchy throat cough should be treated according to the specific cause of the disease, if it is caused by allergic laryngitis, you can take oral anti-allergy drugs, reflux pharyngitis can be diagnosed after the application of drugs to inhibit gastric acid secretion, dry laryngitis can be used to nebulize the inhalation and oral medication. 1. Allergic pharyngitis: most of the patients will have cough, dry and itchy throat symptoms, you can go to the hospital to find allergens, if allergic to dust mites can be desensitization injections, the patient should be away from the allergens as soon as possible, oral antiallergic medication, the common drugs are cetirizine, loratadine and so on. 2. Reflux laryngitis: the throat will be accompanied by dry and itchy, foreign body cough, hoarseness and so on, at the same time there will also be heartburn acid reflux occurs, then you can go to the gastroenterology department to diagnose, after the diagnosis can be applied to inhibit the secretion of gastric acid drug therapy, such as proton pump inhibitors, h2 receptor antagonists. 3. Dry laryngitis: may also cause coughing and itching, should be supplemented with vitamin drugs as soon as possible, or the use of nebulized inhalation therapy. Pay attention to drink more water, do not contact with the polluted environment.