Red ass after breaking the skin with erythromycin ointment serious, consider that the treatment may not be the right cause, it may be broken skin with oozing, or there is an infection but not effective against erythromycin ointment, etc.. 1. not improve the cause: children’s red butt is mostly by the diaper change is not timely, repeated stimulation of the formation of dermatitis, timely change of diapers, keep the local dry, the symptom can be reduced. 2. increased oozing: once the red butt broke the skin after oozing more, erythromycin ointment does not have the effect of astringency, the use of the effect is not ideal. 3. improper use of medication: after the red butt broken skin may not have a bacterial infection, or the infection of the germs on the erythromycin ointment treatment is ineffective, do not use erythromycin ointment coated, need to clean the skin, may need to be coated with glucocorticosteroid ointment, such as hydrocortisone butyrate cream, and to keep the skin dry. Red butt broken skin with erythromycin ointment aggravated, as far as possible to take the child to the hospital, check to clarify the specific situation before treatment. Follow your doctor’s instructions for medication.