1.when do I need cold
The main purpose of cold therapy is to cool down the surface of the skin, so that the main blood vessels to the surrounding area contract and thus reduce bruising, pain level. It also suitable for mitigating bruises, sprains, bruises, minor cuts, minor burns, fever, headache, toothache, nosebleeds, insect bites pains, high intraocular pressure, and other circumstances.
2.When do I need heat therapy?
Heat therapy increases the temperature of the skin surface, in ordeer to dilate the blood vessels, increase blood flow,reduce pain,produce more nutrients and protective elements. It also helps with rheumatism, arthritis, back pain, muscle aches, nasal congestion, neck pain, period pain, and sports injuries.
3.When I got sport injuries, should I apply cold or hot therapy ?
It's recommended to use cold therapy. After 24-48 hours, regularly use heat to increase blood flow in order to get recovered as soon as possible.