Vaginal gel can not be coitus, mainly because of the following reasons: first, if coitus will make part of the gel with semen and discharged out of the vagina, which reduces the efficacy of the drug, so that the treatment time will be prolonged. Secondly, in the clinical use of gel, if the coitus may aggravate the original inflammation, mainly because the coitus will bring the pathogenic bacteria into the vagina, so sometimes it will make the inflammation of the vagina or cervix will be more serious, so in the period of treatment is not allowed to have sex. It is also recommended to keep the vulva clean during the treatment period, and it is best to use pads or sanitary napkins when using the gel, as some of the gel will be discharged out of the vagina after use.