In general, premature ejaculation patients can apply lidocaine gel to the glans 20-30 minutes before sex and simply wash it off with warm water before starting sexual intercourse. Lidocaine gel is commonly used for premature ejaculation caused by hypersensitivity of the glans. The patient takes a soy-sized amount of lidocaine gel before sex and applies it evenly to the glans and tethered area so that it can penetrate under the skin mucosa, which can play a role in reducing the sensitivity of the skin mucosa and can properly prolong sex. However, it should be noted that lidocaine gel must be used in advance and should also be washed before the start of sex to avoid entering the female vagina during sex and reducing sexual satisfaction. Patients are advised to pay attention to the right amount when using lidocaine gel, so as not to cause difficulties in erection or dull sensation of the penis due to overdose.