Also known as Water Centipede, Cold Tendon Grass has the effects of dispelling wind and relieving epidemics, clearing heat and removing dampness (removing heat and dampness from the body), and activating blood circulation and detoxifying the toxin. It is clinically used to treat external fever and headache, whooping cough, malaria, jaundice, bruises, rheumatism and other diseases. Cold Clover is pungent, slightly bitter, sweet and neutral in nature; it belongs to the lung and liver meridians. It can be used internally as well as externally. It can be taken internally with other medicines in decoction, or pounded into juice, or soaked in wine; externally, it can be applied externally by pounding the appropriate amount. Adverse reactions and contraindications are not clear. The use of the drug is highly specialized, and if it is to be used, it should be taken under the guidance of clinical Chinese medicine practitioners for identification of symptoms. If there is any discomfort, one should go to the hospital in time to avoid delaying the condition.