Pimples, or acne, is a common chronic inflammatory disease of the sebaceous glands of the hair follicles, and when breakouts occur, touching water is not recommended to avoid infection. Acne often appears on the face, forehead, chest, back and shoulders. Lesions consist mainly of whiteheads, blackheads, small bumps, nodules and cysts, and the course of the disease is usually chronic, with symptoms that wax and wane. When acne breakouts occur, it is recommended to disinfect the area with iodophor, and contact with water is not recommended to avoid infection and aggravation of the disease, nor is it recommended to disinfect the area with alcohol, which is more irritating. Acne breakouts need to be treated with topical preparations such as erythromycin ointment, lincomycin and chloramphenicol under the guidance of medical professionals. It is recommended that patients go to the hospital in time, under the guidance of doctors to standardize the treatment, to avoid self-treatment.