Description Well Patch Deep Heat Patches are fast acting & deliver up to eight hours of deep relieving warmth directly on the site of muscular aches & pains. When to use it Before, during & after sport or to relieve pain. Hot treatment is also very effective as a follow up to cold treatment, which is frequently recommended for sports & other activity injuries. Apply the cold treatment, then, when the swelling & inflammation has subsided, apply the hot treatment. Great for use during sport. Especially good for: Menstrual cramps back-ache Rheumatic pain Sciatica Lumbago Fibrositis Sprains Muscle stiffness Size Each patch is Approx. 90mm x 120mm. How it Works The penetrating warmth of products in the Deep Heat range helps stimulate circulation, relax stiffness & get oxygen back into tense, painful tissues & muscles.