The GeriGentle® FrostyHeat Pain Relief Patch contains 4% Lidocaine for powerful and penetrating relief for back pain. The patch works immediately on contact and provides long-lasting relief for up to 8 hours. The patch is for external use only and should not be used on wounds or damaged skin. It should not be used with a heating pad or more than one patch at a time. If any rash, itching, redness, pain, swelling, or blistering develops, stop use and seek medical attention immediately. The patch should be worn for a maximum of 8 hours and should not be bandaged tightly. The product should be kept out of reach of children and pets. The directions for use involve cleaning and drying the affected area, removing the film from the patch, and applying it to the skin for up to 3-4 times daily. The product should not be stored in direct sunlight and should be protected from excessive moisture. The product contains Aluminum Glycinate, Glycerin, Kaolin, Methylparaben, Polyacrylic Acid, Polysorbate 80, Propylene Glycol, Propylparaben, PVP, Sodium Polyacrylate, Tartaric Acid, Titanium Dioxide, and Water. The patch is manufactured for Geri Gentle Corporation and is made in China. Lot Number 6.*