Buffalo horn has the effects of clearing heat and cooling blood (relieving blood heat by clearing heat), detoxification, etc. It is mainly used for treating high fever in warm diseases, delirium tremens (delirium of the mind, gibberish), etc. It is cold in nature and bitter in flavor, belonging to the heart meridian and the liver meridian. Buffalo horn is cold in nature, bitter in taste, and belongs to the heart meridian and liver meridian. It has the effects of clearing heat, cooling blood, calming fright and detoxifying, and is mainly used in treating high fever of warm diseases, spotting and rash, delirium, convulsions (pediatric diseases with delirium, convulsions and convulsions as the main manifestations), epilepsy, vomiting and epistaxis. Among them, water buffalo horn with forsythia and xuan shen can cure warm fever disease, heat and fire, strong heat that does not subside, delirium of the gods; with silver flower, yellow dock can cure evil heat into the camp, thirst and tongue, sleeplessness and restlessness at night. Buffalo horn is usually taken by decoction with water, which needs to be decocted for more than three hours first. The adverse effects of this drug, contraindications are not clear, it is recommended that patients who are not feeling well go to a regular hospital in a timely manner, and follow the doctor’s instructions to identify and treat.