Frequent sneezing has the following two conditions: a. If it is accompanied by sore throat, fever, runny nose and general muscle aches, it may be suffering from viral cold, which itself is a self-limiting disease. It is recommended to take more rest, drink more warm water to treat the symptoms, such as using antiviral and antipyretic drugs, and try to eat less spicy and irritating food. Second, if accompanied by an itchy nose, itchy eyes, runny eyes, runny nose, itchy ears and itchy throat, you may be suffering from allergic rhinitis. In this case, the patient is advised to blow less air conditioning, eat less spicy and stimulating food, avoid seafood as much as possible, eat less cold diet, pay attention to keep warm, and use anti-allergy medication to solve the symptoms.