A heat pack is a commercial product used by hikers and skiers as a hand warmer. It consists of a plastic pouch filled with a supercooled solution of sodium acetate (NaCOOCH 3). When a metal disc in ...

Heat packs and cold packs can offer relief ... or elbow Gently apply the cold pack to the injured area. Remember to wrap the pack in a towel to protect your skin. Cold therapy is often the ...

wrap it in a tea towel, and put it on the affected area for about 20 minutes every 2 to 3 hours. If the injury is a long-term, sustained injury then heat may help. The heat should only be a gentle ...