Time extension products, the choice of oral pills or sprays, should be decided according to the doctor’s medical advice and personal constitution. However, in general, the side effects of time extension sprays are smaller compared to oral medication, which is a topical drug. The delay spray is generally applied or sprayed on the surface of the glans and penis half an hour before sex to numb the penis, reduce glans sensitivity and prolong sex. At present, the market mainstream delay spray is divided into two kinds in general, one is the anesthetic-type delay spray with anesthetics as the main ingredient; the other is the plant extract as the main ingredient of the plant delay spray. The plant type will relatively not cause too much stimulation and side effects on the body, while the anesthetic type may cause erection difficulties for men if used for a long time.