For joint and muscle aches and pains from arthritis, sprain, or strains, nothing can feel better than some soothing heat. Forget about heating pads and hot water bottles, return to what you need to do and simply apply a Salonpas 12 Hour pain patch. Your muscles, joints, and backaches will benefit from Menthol 3% and Methyl Salicylate 10%, a topical analgesic and a non-steroidal anti inflammatory that provide up to 12 hours of relief. Follow directions and be aware of any precautions while using Salonpas 12 Hour pain relief patch.