Fleabane, also known as Chonglou, has the efficacy of subduing swelling and relieving pain (eliminating swelling and pain), cooling the liver and calming fright, and clearing heat and removing toxins (removing heat and poisonous evils from the body). It is clinically used to treat carbuncle boils (sores that mostly occur on the limbs or face, with small shapes and deep roots, as hard as nails), venomous snake bites, and convulsions (a pediatric disease that manifests itself mainly in dizziness, convulsions, and convulsions). Chonglou is a kind of Chinese herbal medicine, bitter, slightly cold, with a small poison. Chonglou has a good effect of clearing heat and removing toxins, and can be used to treat carbuncle, furuncle, scrofula (mainly refers to the neck lymph node tuberculosis) and other diseases. Chonglou bitter cold into the liver, have cool liver diarrhea fire, rest the wind to calm the effect of shock. Clinically, if overdose of Chonglou is used, it may cause poisoning, which may be accompanied by nausea, diarrhea, headache and so on. It is forbidden to consume it for people who are weak, have external ulcers of yin evidence, have no real fire and heat toxicity, children, pregnant women and other people. When taking Chonglou, patients need to be in a professional doctor after identification and treatment, reasonable selection, not to take on their own, in order to avoid adverse effects.