Lidocaine is not the same as time delay sprays, but it can also have the effect of prolonging the time, and should be used correctly under the guidance of a doctor to avoid unauthorized use to cause damage. Lidocaine is a local anesthetic and antiarrhythmic drug, which can be used for surgical skin anesthesia, and can also be used to treat ventricular arrhythmia. It can be applied to the glans to reduce the sensitivity of the glans, which in turn can have the effect of prolonging ejaculation. The use of Lidocaine may cause neurological symptoms such as drowsiness, dyspnea and dizziness, as well as cardiovascular reactions such as low blood pressure and slow heartbeat, and is contraindicated in people who are allergic to the drug, epileptic, or have severe cardiac conduction block. Drugs should be used properly under the guidance of a doctor to avoid unauthorized consumption and damage to the body.