A sprain of the big toe can be treated systematically and recovered in about 3 weeks. Cold compresses must be applied immediately after a sprain of the big toe to reduce vascular bleeding at the injury location and to avoid aggravation of local swelling and inflammatory edema, and to take appropriate external fixation, usually choosing a relatively small splint for fixation of the sprained position of the big toe to avoid further damage to the ligaments at the injury location, which are again strained, and to take strict bed rest, which must elevate the lower limbs during bed rest. After 1 week or so of acute edema, the pain will be relieved, and in about 2 weeks the splint will be removed and the toe will be moved appropriately. The pain and unfavorable movement of the big toe can be basically eliminated in about 3 weeks.