Delay spray is mainly divided into physical delay spray and nerve paralysis delay spray, general physical delay spray no obvious side effects, and nerve paralysis class delay spray common side effects such as rashes, itching and other allergic reactions, excessive numbness of the glans and numbness of the female vagina, affecting the erection as well as the penile skin pain and so on. 1. Allergic reaction: mainly due to the patient’s allergy to the ingredients contained in the delay spray, after the use of local rashes can occur, there will be obvious itching. 2. Numbness: because the delay spray contains local anesthetic drug ingredients, so if the use of a large amount, can lead to the glans, penis for a long time numbness, and the ingredients in contact with the female vagina, can lead to women’s vagina also appeared numbness. 3. Impact on erection: after local anesthesia, due to the patients’ penile sensory obstacles, so it is easy to not have an erection, and the patients are not easy to ejaculate after erection, which affects the pleasure. 4. Skin irritation symptoms: part of the time-lapse spray alcohol content, so if there is a break in the penile skin, prone to irritation and pain. It is recommended that patients use under the guidance of a professional physician, discomfort, timely consultation, so as not to delay the condition.