Pain on the surface of a wound is not usually a sign that the wound is healing, and the healing process of a wound is dominated by mild itching. If the wound pain just appeared is normal, because the tissue was stimulated by the trauma, a normal feedback of the pain sensory nerve. If the trauma for a period of time after the reappearance of pain, considering the possibility of wound site infection, the need to carefully observe the wound site skin, if the phenomenon of redness, swelling, ulceration, you need to go to the local hospital to do the blood routine, the appearance of a large number of elevated white blood cells can be clear wound infection. It is recommended to use oral amoxicillin, cefixime and other antibiotics to treat the infection, and then apply iodophor solution locally, within a few days this redness, swelling, ulceration phenomenon will be under control, the pain will gradually subside. It should be noted that eat less chili and drink less alcohol before the wound is fully recovered to avoid affecting the speed of wound healing.