Diaper rash, generally referred to as diaper dermatitis, is a common contact dermatitis in infants and young children, and may not be effective with erythromycin ointment. Diaper dermatitis is mainly due to the skin for a long time by the urine, feces stimulation caused by erythromycin ointment belongs to the antibiotic class of drugs, so on the diaper dermatitis can not play a better therapeutic effect. If you suffer from diaper dermatitis, parents can follow the doctor’s instructions to give children topical ellagic acid ointment, can reduce the inflammation. You can also use topical zinc oxide cream, which can protect the wound and promote the role of epidermal regeneration. In addition, patients can also use topical glucocorticoid ointment, such as mometasone furoate, tretinoin econazole, etc., can control the role of inflammation. For children with diaper dermatitis, it is recommended that parents consult a doctor and give the child medication as prescribed by the doctor, not self-medication.