White runny nose is mostly considered to be caused by acute upper respiratory tract infection or allergic rhinitis. If it is considered as acute upper respiratory tract infection, mostly viral infection, it is recommended to drink more warm water, pay attention to rest and keep indoor air circulation. If the nasal congestion is serious, you can give pseudoephedrine nasal drops and also take oral antiviral Chinese medicine to improve the symptoms. If allergic rhinitis is considered, it is recommended to get rid of allergens and avoid contact with allergens, and to take oral anti-allergy drugs, such as antihistamines, and to pay attention to a light diet and avoid spicy and stimulating foods during the runny nose.