The residue of chenoprogesterone will be excreted with vaginal secretion, but it will take a relatively long time, not immediately, and may be divided into several days before it is excreted. No special treatment is needed clinically, just keep the vulva clean locally. In addition, during the use of the drug should also pay attention to be sure to wash your hands before inserting the drug, to clean the vulva, and then inserted into the vagina of cernodyl. Part of the drug will be absorbed through the vaginal mucosa to reach a certain concentration, which will have a certain effect in the clinic. A part of the drug will be discharged from the vagina, in the clinical as long as to keep the vulva local clean, and during the use of the drug is recommended to use sanitary napkins or pads, because the drug residue will be discharged outside the vagina, so in the clinical this point to give appropriate attention can be.