Small bumps on the face are considered to have the following possibilities: First, allergic reactions caused by sunlight and ultraviolet radiation, resulting in solar dermatitis. Second, cosmetic dermatitis, mainly due to the application of sunscreen, body lotion, or cosmetics. Third, allergic dermatitis caused by the application of salt bath, milk bath, and beer bath. The above three cases can be treated with oral levocetirizine hydrochloride capsules, or loratadine capsules, and topical treatment with zinc oxide ointment borate. The fourth, flat warts, mainly due to the human papillomavirus HPV infection caused by the surface of the skin is a small break after the virus invasion caused.