The replacement of diapers needs to be decided according to the baby’s stool and urine, as long as the baby has stool or urine, diaper wetting should be changed in time. Some parents will be because of economic reasons, in the baby’s urine is not much when the temporary not change the diaper or due to negligence did not change the baby in time, it is easy to lead to the baby diaper dermatitis, mainly manifested as perineal skin redness, swelling, rash, serious skin ulceration. Once this situation needs to timely give the baby topical medication for treatment, you can use euthyroid topical, if the skin ulcers need to be added with erythromycin ointment, combined with mycobacterial infections also need to be added with dakinonan topical for treatment.