The main effect of lidocaine topical delay spray is local anesthesia, reduce the sensitivity at the glans to achieve the effect of prolonging sexual life time, mainly used to improve the symptoms of premature ejaculation. The specific effect varies from person to person, some patients in the use of can lead to can not ejaculate, can not get an erection and other performance. 1. Good results: for patients with premature ejaculation, especially due to the high sensitivity of the glans, the use of lidocaine delay spray on the glans can effectively reduce the sensitivity of the glans, so that the duration of sexual life is prolonged. 2. Poor results: the use of smaller doses, the improvement of premature ejaculation is not obvious; with more drugs, it is easy to lead to the glans ejaculation threshold is too high, so that the patient is not easy to ejaculate. In addition, it can also cause some patients to be insensitive to sexual stimulation, resulting in the patient’s penis is not easy to erect. 3. Adverse reactions and contraindications: Lidocaine delay spray can cause allergic reactions such as rash, itching, allergic to the components of the drug is prohibited. When the patient’s sex life is too short, it is recommended to go to the hospital, improve the auxiliary examination, clear condition, the drug needs to be used under the guidance of a professional physician.