When someone is badly cut, apply pressure to the wound with a sterile dressing or a clean, thick cloth. Wash minor cuts with soap and water. Irrigate deeper wounds under running water for at least 5 minutes. Apply an antibiotic ointment to abrasions only, and cover the area with a bandage. Keep the wound clean and dry. For deep cuts, seek medical care immediately if you can't control the bleeding in 10 minutes, if you think stitches are necessary or if the wound is very dirty. Bruises from a blow to the skin can be painful. Apply a cold pack to relieve the pain and swelling. For a serious blow to the head, seek medical help. Look for signs of a concussion, such as confusion, dizziness or nausea.