Usually, the wound needs to be treated by cleaning, disinfection, hemostasis and bandaging to avoid infection. 1. Cleaning: patients need to clean the wound at the first time, such as rinsing under water or using saline to remove surface dirt and keep the wound clean and clear. 2. Disinfection: Under the guidance of the doctor, a sterile cotton swab dipped in povidone-iodine should be used to disinfect the wound, remembering to apply it from the middle of the wound in the order of inside out, and the same cotton swab should not be used repeatedly. 3. Hemostasis: For patients with heavy bleeding, it is necessary to follow the doctor’s instructions to apply hemostatic drugs, such as 1% ephedrine, 1% epinephrine, thrombin and so on. 4. Dressing: In addition, if the wound is small, a band-aid can be used; if the wound is large, a sterile dressing or yellow gauze may be needed. All in all, when the skin wounds need to be timely home treatment, if necessary, you need to go to the hospital, cooperate with the doctor for treatment.