Lidocaine can have a delaying effect on some patients with premature ejaculation, depending on the degree of absorption of the individual, to be used under the guidance of a doctor. Lidocaine can inhibit the sodium channels on the cell membrane, thus having a membrane stabilizing effect, and is a more commonly used local anesthetic drug; applied to the male glans, it can achieve the effect of surface anesthesia, thus reducing the sensitivity of the glans, and achieving the effect of prolonging sexual life. The use of lidocaine may cause drowsiness, dizziness, impaired consciousness, and other symptoms, and may also cause low blood pressure, slow heartbeat, heart block, etc. It is prohibited for people with severe heart failure, allergy to drugs, history of epilepsy, and liver and kidney dysfunction. Drugs should be taken under the guidance of a doctor and in accordance with the dose, to avoid unauthorized use, causing unnecessary damage to the body.