Fresh aloe vera should not be used to wipe wounds. If a patient has a wound after trauma, if fresh aloe vera is used to rub the wound, it will not only fail to disinfect and sterilize the wound, but may also cause bleeding, aggravate the wound infection or skin allergy, so fresh aloe vera should not be used to rub the wound after trauma. After the trauma, you can apply iodophor to disinfect the wound, if the wound is deep, you can also apply saline to flush the wound. If the wound is heavily contaminated, the wound can also be flushed with hydrogen peroxide to remove foreign bodies, then the wound can be disinfected with iodophor, and be cleaned and sutured, and the wound can be dressed. In addition, patients with more serious wounds should be injected with tetanus shots to prevent tetanus, and regular dressing changes to the wound to avoid wound infection.