There is no fastest way to reduce high fever. Physical therapy such as fever patches and medication such as ibuprofen can be used for high fever. It is also necessary to find the cause of the fever and treat the cause. 1. Physical cooling: you can lower the temperature through physical means, such as fever reducer, warm water wipe and other methods, wipe parts of the forehead, groin, armpits and other places, conducive to the body’s heat dissipation. 2. Drugs to reduce temperature: high fever can be taken orally under the guidance of the doctor antipyretic drugs, such as ibuprofen, diclofenac sodium and so on to help lower the temperature, to avoid complications caused by high fever. For those whose fever does not go down, intramuscular injection of aminopyrine, or intravenous injection of methylprednisolone, dexamethasone, etc. can be used. For patients with high fever, it is necessary to consult a doctor in a timely manner, under the guidance of the doctor to take targeted treatment, do not take medication without authorization, so as not to delay the condition.