The child’s buttocks red more serious consideration is caused by diaper dermatitis, need to take general measures, medication and other improvements. 1. General measures: you need to change the child’s diaper in a timely manner, to keep the buttocks clean and dry. 2. Medication: Parents can apply tanning acid ointment, zinc oxide ointment and other emollient barrier creams to the child’s buttocks under the guidance of a doctor, or mometasone furoate cream, dexamethasone ointment and other glucocorticosteroid ointment. If your child has a secondary bacterial infection at the lesion site, antibiotic ointments such as mupirocin ointment and erythromycin ointment are required as prescribed by your doctor. If the diaper dermatitis caused by the child’s buttocks red more serious, parents need to take the child to the doctor in time, the doctor will be based on the patient’s condition to choose the appropriate measures of treatment.