Lidocaine application can be applied evenly to the surface of the skin, such as wounds or locations where pain is evident, and can also have a delaying effect on premature ejaculation. Lidocaine is mainly composed of proparacaine and lidocaine, is a local anesthetic drug, for the treatment of premature ejaculation has a certain treatment, can be evenly applied to the surface of the undamaged skin, applied to the glans and the tethered area; if it is used for other diseases, it should be evenly applied to the damaged area and the location where the pain is obvious. Lidocaine should be used under a doctor’s supervision to avoid using the drug privately. If itching, burning sensation and other uncomfortable symptoms occur during the use of the drug, stop using the drug in time and scrub clean. If there is an allergy to the ingredients of lidocaine people should be prohibited from using it.