Loop a towel or long scarf around an injured arm; pin or tie the ends securely around the victim's neck.
Put a fairly tight jacket on the victim, leaving the injured arm out of its sleeve. Then button or zip the jacket around the arm, elevating the hand 3 in / 75 mm above the elbow.
Put an oversize, long-sleeved shirt, jacket or cardigan on the victim; support the injured arm by pulling up the bottom of the garment and buttoning it at the top.
