Cat’s claw herb is a kind of Chinese herbal medicine, with detoxification of swelling, phlegm, dissipation of lumps, need to follow the doctor’s instructions for rational application. Cat’s claw belongs to the phlegm dispersing class of Chinese herbal medicine, is a buttercup plant buttercup plant small buttercup dry tuber, also known as three scattered grass. Its flavor is sweet, pungent, warm. Attributed to the liver, lung meridian. Cat’s claw herb has a very good role in resolving phlegm and dispersing knots, and can treat scrofula (mainly refers to cervical lymph node tuberculosis), with the role of promoting the dissipation of lumps. Cat’s claw herb has the role of clearing heat and detoxification (clearing the body of heat and toxicity), swelling, skin boils (mostly occurring in the limbs or facial sores, the shape of a small root deep, such as nails as hard), insect and snake bites, can also be used to treat the disease. The above is the role of cat’s claw grass and the main efficacy, specific medication need to consult a professional physician. Cat’s claw herb can be used internally and externally, adverse reactions and contraindications are not clear.