The dangers of Zelda are not clear, Zelda is cold in nature, if overdosed, diarrhea and other symptoms may occur. Taking medication is recommended under the guidance of a professional doctor, not self-medication to avoid adverse consequences. Zelda is the tuber of the plant Zelda family Zelda, taste sweet, light, cold, to the kidney, bladder meridian. It has the effect of inducing diuresis and seepage of dampness (promoting the operation of water to get rid of dampness), draining heat, resolving turbidity and lowering fat (cleaning up the body’s dirty and turbid substances and reducing excess body fat). Attention, this product is contraindicated for people with kidney deficiency and essence slippery without dampness and heat. When used to treat edema, dysuria (unsmooth urination), it can be combined with Poria, Poria, Gui Zhi, etc. When used to treat dampness-heat gonorrhea (increased urination, dribbling, astringency and pain), it can be combined with Moutong, Psyllium and so on. The combination of drugs should be carried out under the supervision of a doctor, and the possibility of harm within a safe dose is small.