Lidocaine gel is usually numb for about 40 minutes after uniform application and is mainly used clinically for premature ejaculation patients to properly prolong sexual intercourse. Premature ejaculation is a more common male sexual dysfunction with more causes, which may be due to mental tension and anxiety, or may be caused by high glans sensitivity. And lidocaine gel is mainly used for premature ejaculation caused by hypersensitivity of the glans. Patients take a soy-sized amount of lidocaine gel about half an hour before each sexual intercourse and apply it evenly on the glans, which can play the role of local anesthesia, reduce the sensitivity of the glans, prolong the sexual intercourse for 5-15 minutes and prevent premature ejaculation. In addition, it should be noted that some patients may be allergic to lidocaine gel, if the local redness, swelling and itching symptoms appear after application, you need to stop using it in time.