Red buttocks, also known as diaper dermatitis, is the most common irritant contact dermatitis in infants, and is related to a variety of factors, such as untimely diaper changes, local sealing, impregnation and friction irritation, etc. Care includes keeping the skin dry, using oils, and medication. 1. Keep the skin dry: If the child is not cleaned in time after using diapers. Residual urine and will cause local skin irritation, should be changed at any time diapers, timely cleaning of the local skin to local dryness is appropriate. Can be appropriate to infants and young children coated with baby-specific moisturizing cream, to help establish the skin barrier. 2. Medication: Erythromycin ointment, zinc oxide ointment, compound comfrey oil, etc. can be used appropriately. The cause of red buttocks is that the buttocks are not breathable, cleaning is not timely, no good hygiene, so you need to pay extra attention to the hygiene care around the baby’s buttocks. When infants and children have red buttocks, if the symptoms further aggravate, they should go to the hospital in time and strictly follow the doctor’s instructions for treatment.