For powerful pain relief of muscles and joints, use Ultra Strength Bengay Pain Relieving Patch. This self-adhesive pain relief patch feels cool when first applied and then targets pain with concentrated, deep, penetrating heat, providing greater flexibility and mobility. The large size is ideal for soothing pain in your lower and upper back, shoulders, and hips. Apply one single-use patch to the affected site for relief where it's needed most. From the #1 doctor-recommended OTC brand for topical pain relief, this patch measures 3.9 by 7.9 inches and is individually-wrapped for convenient on-the-go pain relief.