Diaper rash medical collectively known as diaper dermatitis, manifested in the diaper contact area, the border is clear large red spots, papules, can be accompanied by vesicles oozing. 1. Diaper dermatitis is due to the diaper change frequency is small or not clean, so that the baby’s anus, buttocks, perineum and other diaper contact area of the skin red, and can have a clear boundary of the large red spots, pimples and other manifestations, can be accompanied by vesicles oozing, combined with local bacterial hyperplasia, it will make the symptoms worse. 2. The principle of treatment for diaper dermatitis is to first remove diapers and other items that contact the skin, keep the skin at the lesion dry and clean, you can use zinc oxide cream to reduce the inflammatory response and promote epidermal regeneration, and mupirocin ointment can be used in case of secondary bacterial infection. If the infant appears diaper dermatitis, should promptly seek medical attention, under the guidance of the doctor to use medication, do not blindly self-medication.