... harm WARMER PAD, also named as HEAT PAD, WARM PATCH, WARM PACK, SELF-HEAT PACK. This product used ... to 12 hours at least. It can relieve the pain on the waist, shoulder, stomach which was caused ... injury, bone injury, muscle injury. It can relieve pain and detumescence.3.Promoting the good work of the ... to 12 hours at least. It can relieve the pain on the waist, shoulder, stomach which was caused ...