Wrist sprains should be treated as soon as possible with ice and rest. Ice should be used for 15 to 20 minutes every 2 to 3 hours for the first few days after an accident to alleviate pain and inflammation. Chemical ice packs should not be used directly to the skin since they might induce frostbite. Instead, use a bag of frozen peas or corn to provide similar cooling effects. After the first few days, light activity can be resumed if the child is able to use his or her arm properly. A splint may be required to keep the injured arm in place while it heals. The doctor may recommend some simple exercises to help prevent stiffness and improve range of motion. If your child has a sprain that has been going on for several weeks, see his or her doctor to determine the best course of action. An injury this severe may require surgery to realign the bones back into place.