Deep Heat Patches are odourless, non-staining, and are ready to use to provide targeted pain relief to muscular aches and pains, joint stiffness, and backache. Deep Heat Patches pr penetrating heat that helps to relieve stiff, sore, aching muscles and joints, and aids in restoring your movement. The heat helps to increase blood flow to the affected area and pr oxygen and nutrients to help in the healing process. These patches can be directly adhered to the skin at the site of pain, to pr soothing controlled heat for up to 8 hours.