In case of acute injuries, cold therapy is usually preferred as it reduces pain, swelling, and aches. Also, it limits the internal bleeding on the injured area. Cold gel packs like Colpac, can ease the pain and redness on the bruised area. The more shape conforming the pack is to the affected area, the better it is. While ice packs are good for injuries, they should not be left on the skin for too long as they can stop the blood flow also.

For chronic injuries like back pain, stiff muscles, joint pains and all where there are no outward injuries, heat therapy is the most useful. Heat therapy can help relax the tight and spasmed muscles. Therefore, sometimes, heat is good before a workout session. Gel packs which can be heated or hot gel packs can increase the elasticity of joint tissues. Heat treatment should never be given on an area which has inflammation and redness as it will aggravate the situation. A knee wrap is designed such that it conforms to the knee and is available in free sizes which fit all adults. It comes with a gel pack which can be used for either hot or cold therapy. The material used for knee wrap is breathable so it is comfortable to wear it.