For a superficial skin abrasion near a fracture, first gently clean the area with mild soap and water. You can apply a thin layer of an over-the-counter antibiotic ointment, such as Bacitracin or Polysporin, or plain sterile petroleum jelly (Vaseline) to keep the wound moist and promote healing. Cover it with a sterile, non-stick bandage. However, because this abrasion is near a fracture, it is critical to consult your orthopaedic doctor before applying anything. Preventing infection is vital to avoid complications with the underlying bone. Seek immediate medical care if you notice worsening redness, swelling, warmth, or drainage.