The phenomenon of small rice grain bumps on the face may be allergic dermatitis, may also be acne or cornu rashes and other factors, it should be based on different causes to take different treatment measures. 1. Allergic dermatitis: is a relatively common skin disease, due to the body’s exposure to certain allergens and the abnormal immune response caused by the phenomenon can be manifested in the phenomenon of the face are small rice pimples, accompanied by varying degrees of itching, tingling, etc., which can be treated with loratadine or cetirizine hydrochloride tablets and other medications. 2. Acne: a chronic inflammatory disease of the sebaceous glands of the hair follicles, characterized by pimples, papules and pustules, often accompanied by seborrhea, which can be relieved by applying medications such as fusidic acid cream. 3. Corns: benign microcysts caused by genetic factors, skin damage or sweat duct damage, mainly manifested as multiple yellowish-white hard pimples, usually occurring on the face, which usually have no conscious symptoms and usually do not need treatment. If the above symptoms occur, it is recommended to enter the hospital in time to identify the cause of the disease and provide targeted treatment.