Ai Yanbao, also known as physiotherapy bag and warm moxibustion bag, is the oldest health care product in China. Ai Yanbao uses the moxa salt and traditional Chinese medicine ingredients in the bag to carry out hot moxibustion on acupuncture points above the surface of human skin. With the function of damp-heat, it permeates the epidermis, conducts through meridians, strengthens the body resistance and eliminates evil, warms meridians and collaterals, regulates qi and blood of viscera, promotes blood circulation and removes blood stasis, breaks blood and collaterals, relaxes tendons and collaterals, relieves swelling and pain, removes dampness, tonifies kidney and strengthens yang, nourishes blood and benefits qi. It is a kind of external treatment of traditional Chinese medicine, which has no harm to the body and has unique health care function.