The patient wound pus according to the specific situation of the patient wound is different, can choose different treatment methods: First, if the patient wound pus amount is small, there is no obvious redness, swelling, pain, skin temperature rise and other acute inflammatory manifestations around the wound. At this time, suggesting that the local infection is mild, it is recommended that the patient open the wound to a small extent, repeatedly squeeze and fill in petroleum jelly gauze to drain the pus. Most of the patients 3-5 days after a small amount of pus can be completely drained, the newborn granulation tissue grows faster, so as to achieve better therapeutic effect. Second, if the patient’s wound appears obvious redness, swelling, heat, pain and other signs of acute inflammation, accompanied by fresh pus outflow, often suggesting that the wound is accompanied by a larger range of suppurative infection. You can make a clear diagnosis through ultrasound examination, open the wound as soon as possible, remove the necrotic tissue and pus cavity, give hydrogen peroxide, vitality iodine repeated alternate rinsing, promote the growth of fresh granules in the wound.