In my opinion, taro must be coarse grains. Jian Dan Qin Xin said: Taro tastes sweet, pungent and flat, and enters the stomach. Has the effects of invigorating stomach, relaxing bowels, resolving hard mass, invigorating middle warmer, tonifying liver and kidney, and replenishing essence. It has certain curative effect on adjuvant treatment of diseases such as dry stool, goiter, lymph node tuberculosis, mastitis, insect bite bee sting, intestinal insect addiction and acute arthritis.