If your baby’s bottom is rotten, if it is caused by improper care, it is recommended to switch to diapers so that the permeability will be better and not to wear too hot, covering the hot situation will aggravate the infection of the buttocks. All have broken down, it means that there is an infection. It is necessary to use anti-inflammatory medicine, such as erythromycin ointment, or eye ointment applied externally. Wash it as soon as possible after each urination or defecation and wipe it clean with hygienic gauze, making sure not to rub it hard. If it is caused by diarrhea, you need to treat diarrhea as soon as possible, take oral montelukast and probiotics to regulate the intestinal tract and relieve diarrhea. If the buttock is rotten, if it continues to aggravate, the whole organism may become infected, because the baby’s resistance is lower and the skin is more delicate, sepsis may occur, so active treatment is needed.