Baby red buttocks, that is, infant diaper dermatitis, should first be treated for the cause, and then relieved by general treatment or medication. Infantile diaper dermatitis is a skin disease that occurs around the anus and buttocks and other diaper-covered parts of the baby, often manifested as redness of the local skin in contact with the diaper, and in severe cases, skin erosion and epidermal exfoliation can occur. The treatment of diaper dermatitis in infants and young children mainly lies in removing the causative factors and changing clean diapers in time. At the same time, wash the buttocks, vulva and surrounding skin with water every day to keep it clean and dry. Diapers should be rinsed with water. Parents need to bring their children to the doctor in time, under the guidance of medical professionals, according to the condition of the child’s skin lesions, topical use of zinc oxide cream, Dinaid cream and other drugs treatment.