Sneezing after drinking is mostly caused by vasomotor rhinitis or allergic rhinitis. 1. Vasomotor rhinitis: because of the overly strong reaction to certain stimulating factors, it is also called hyperresponsive rhinopathy. Its symptoms are similar to those of allergic rhinitis and non-allergic rhinitis with eosinophilia syndrome, which are characterized by itchy nose, sneezing and runny nose. Alcohol is volatile irritant liquid, nasal olfactory region nerve endings feel alcohol stimulation, can cause mast cells to release mediators, stimulate nerve reflexes appear sneezing action. 2. Allergic rhinitis: people who are allergic to alcohol can have an allergic reaction after drinking alcohol, and itchy nose, sneezing and runny nose are the main common symptoms of allergic rhinitis. If sneezing occurs often after drinking, it is recommended to avoid contact with alcohol to avoid causing discomfort.