Antipyretic injections are categorized into three types: non-steroidal anti-inflammatory drugs, glucocorticosteroids, and herbal injections. 1. Non-steroidal anti-inflammatory drugs: for the more commonly used antipyretic injection in the clinic, there are compound aminobarbital, arginine aspirin, etc., which can have an antipyretic effect, as well as analgesic effect. But it will produce nausea, vomiting and other gastrointestinal discomfort and other adverse reactions. 2. Glucocorticosteroids: such as dexamethasone, with analgesic, reduce inflammatory response, antipyretic and other effects, suitable for rheumatic immune diseases, malignant tumors caused by fever treatment. It can cause adverse reactions such as rise in blood sugar and peptic ulcer. 3. Proprietary Chinese medicine injection: Qingkailing injection, Chaihu injection, etc. However, side effects such as allergy, respiratory difficulty, liver and kidney damage may occur after injection. You need to take a fever-reducing injection when you have a fever, and the specific kind to be used should be decided by your doctor, and it is recommended that you seek medical treatment promptly after you have a fever.