Dry, itchy throat and cough may be chronic pharyngitis, reflux pharyngitis, allergic rhinitis, upper respiratory tract infections, etc., need to be treated accordingly for different diseases, and there is no “most effective” medicine for these symptoms. 1. Chronic pharyngitis: acute pharyngitis prolonged recurrent episodes lead to chronic inflammatory exudation of the pharynx, the posterior wall of the pharynx lymphoid follicle hyperplasia, so the throat is dry and itchy, there is a sense of foreign body, itchy feeling, and accompanied by coughing. You can take mint tablets, watermelon cream tablets and other medicines. 2. Reflux pharyngitis: gastric acid and other stomach contents reflux through the cardia and esophagus to the pharyngeal area, corrosive stimulation of the mucous membrane of the pharynx and cause the above symptoms, often accompanied by acid reflux and heartburn. Eating eplazole, omeprazole, cimetidine, domperidone, aluminum magnesium carbonate and other drugs can gradually relieve the symptoms. 3. Allergic rhinitis: allergen stimulation, autoimmune disorders and other factors lead to nasal mucosa oozing, bleeding and other inflammatory reactions, secretions along the nasal cavity reflux stimulation of the mucosa of the throat, causing the above symptoms. Eating chlorpheniramine maleate, loratadine, hydroxymetazoline and other drugs can play an anti-allergic role. 4. Upper respiratory tract infection: after the virus invades the mucous membrane of upper respiratory tract, it induces immune reaction in the mucous membrane of pharynx, so the above symptoms will appear, and it is common to use pharyngitis tablets, phenmetrazine, aminophenol xanthanamine and other medicines to control the symptoms. The above drugs should be standardized for use after clear diagnosis under the guidance of a physician.