Toad skin has a small poison and is usually used after concoction. Its effects and functions include clearing heat and removing toxins (removing heat, poison and evil from the body), and inducing diuresis to eliminate flatulence. Toad skin is also known as toad skin, dry toad skin, clam shell skin. It is the skin of the Chinese big toad or black orbital toad of the toad family. Clinically, it is mainly used for the treatment of chronic bronchitis, scrofula (mainly refers to cervical lymph node tuberculosis), noma abdominal distension, carbuncle gangrene (is a kind of poisonous sores, occurring on the body surface, limbs, internal organs of the acute suppurative disease) and swelling poison. It should be noted that pregnant women should not take toad skin. If the patient has any discomfort, please go to the regular medical institutions; if you need to use toadstool skin, must be used under the guidance of a professional doctor.