Postpartum lacerations can be cleaned with potassium permanganate solution, povidone-iodine and other medications under the direction of a doctor. In addition, wound care should keep the wound clean and dry, improve diet and so on. 1. Cleaning: Potassium permanganate solution has the effect of sterilization, you can use this medicine to clean the postpartum laceration wound, which can prevent local infection and promote wound healing. Postpartum laceration wounds can also be cleaned by iodophor, which needs to be disinfected every day, using iodophor once in the morning and once in the evening. It can effectively kill the local bacteria, which is helpful for the recovery of the wound. 2. Keep the wound clean and dry: mothers need to change sanitary pads and underwear regularly to avoid wetting, and try to keep the wound clean and dry to speed up the recovery of the wound, so as to avoid infection of the wound. 3. Improve your diet: If you are constipated, you will need to exert more force when defecating, which may cause the wound to tear again. Therefore, mothers can eat more fresh vegetables and fruits and drink more water to keep the bowel movement smooth and avoid constipation. If you find pain, redness, swelling and other uncomfortable symptoms in the wound during the process of cleaning, you should go to the obstetrics department of the hospital in time, and under the guidance of the doctor for appropriate treatment.