It is not recommended to apply Dacronin every day, its effect on premature ejaculation has some relief, but daily application is likely to increase the incidence of adverse reactions. Dacronine hydrochloride as an anesthetic has the effect of pain and itching, for premature ejaculation there is no professional research can prove. It can reduce the sensitivity of the glans and paralyze the glans, which may have a short-term effect, but cannot cure premature ejaculation. And daily application may lead to an increased incidence of the following adverse reactions. When using this drug, because of the difference in patient tolerance to this product , some patients may experience adverse reactions such as mild headache, anxiety, hot and cold sensations. Some patients are not allowed to use this drug: pregnant and lactating women, patients who are allergic to dacronin hydrochloride and its components. If premature ejaculation occurs, it is recommended to go to the relevant hospitals for treatment in time to avoid aggravation of the situation.