Get a free Christmas card with your order now! Quick pain relief: The pain relieving patch has a unique formula, heats up quickly and provides effective pain relief, suitable for knee pain, muscle pain, back pain, tendonitis, strains and sprains, etc. The knee joint patch will heat itself and penetrate deep into the injured area of the muscle to effectively relieve the pain. Purely herbal ingredients without any side effects Up to 12 hours: the pain relief patch has a strong penetration power and has a targeted relief effect. It can relieve pain for up to 12 hours. It is suitable for spine pain, frozen shoulder, knee pain, hip pain, etc.Self-heating helps relieve pain and reduce joint stiffness; Lightweight, breathable and specially designed for the knees, not easy to fall off. Main function: 100% pure natural herbal extract; self-heating helps relieve pain and reduce joint stiffness; lightweight, breathable and specially designed for knees, does not fall off easily and quickly relieve various knee joint pain; keep warm, activate blood circulation, reduce mucus, reduce inflammation and relieve pain. More than 12 hours of analgesia that provides continuous warmth and comfort. Multi-purpose: Our pain relief patches can relieve various pain. It can penetrate deep into the area of muscle injury. Suitable for drivers, office workers, athletes and the elderly. Simply clean the affected skin area with warm water, and stick the pain-relieving adhesive patch to the place where you have pain. Temporary pain relief and ultimate relaxation after a long and strenuous day of work Ergonomic design: safe and without stimulation. Ultra-thin, comfortable, ergonomic design ensures a good fit; you can cut the plaster into any size that fits the painful area, knee pain relief patch, the packaged wormwood knee patches are easy to wear and use at any time.