Heat and cold therapy are often recommended to help relieve an aching pain that results from muscle or joint damage. Basic heat therapy, or thermotherapy can involve the use of a hot water bottle, pads that can be heated in a microwave, or a warm bath. For cold therapy, or cryotherapy, a water bottle filled with cold water, a pad cooled in the freezer, or cool water can be used. In some cases, alternating heat and cold may help, as it will greatly increase blood flow to the injury site.
Here are some key points about cold and heat treatment: