How does a heat pad help the injury?

Heat applied to a strain or muscle injury when swelling is not present increases circulation to the spot. Heat can also help to reduce pain, and increase flexibility. Moist heat is a better option, so a heated moist towel or soaking in a warm tub would be advisable.
Heat applied to a strain or muscle injury when swelling is not present increases circulation to the spot. Heat can also help to reduce pain, and increase flexibility. Moist heat is a better option, so a heated moist towel or soaking in a warm tub would be advisable.