⋒Safe and Non-Irritating: This mugwort patch adopts natural Chinese herbal medicine ingredients, which are safe and effective to use, and have no side effects. You can use it with confidence. ⋒Easy to Use: This mugwort patch has a good self-heating design with good stickiness and can be easily and firmly attached to the skin. Just stick it on your knees after cleansing your skin. ⋒Relieve Fatigue: This moxibustion cervical patch releases warm and comfortable heat to help you relax your muscles a