The dangers of men using time delay sprays are allergy, excessive numbness and dependence. 1. Allergy: some patients are allergic to the ingredients of time extension sprays, which will produce itching, rash, pain and other phenomena, and in serious cases, skin ulceration and oozing may occur. When allergy occurs, stop using it immediately and rinse with water, followed by immediate hospitalization. 2. Excessive numbness: the composition of the general delay spray is mainly surface anesthetics, such as lidocaine, bupivacaine, etc. By anesthetizing the subcutaneous nerves, it can reduce the sensitivity of the glans and prolong the time of sexual life. However, if used improperly, it may cause excessive numbness and discomfort of the penis, erection difficulties and ejaculation difficulties. 3. Produce dependence: generally occurs in the long-term use of time-lapse spray patients. Once stop using, there may be excessive sensitivity of the glans, which may lead to premature ejaculation. To summarize, time-delay sprays may cause harm to the human body and are not recommended for use. If sexual dysfunction exists, you should seek medical attention in a timely manner.