It is not recommended to check the leucorrhoea immediately after intercourse, but at least two days before the routine leucorrhoea test, in order to avoid the residual sperm in the vagina after intercourse, which will affect the results of the test and also cause inaccuracy of the routine leucorrhoea test, so as far as possible, the test should be carried out after two days interval. You can wash your vagina within two days, but not your vagina. If you wash your vagina, it is more likely to cause vaginal inflammation, which will also affect the test results. After the results of the test, you can prescribe gynecological lotion and vaginal plugs according to the results, both of which can treat vaginal inflammation. If you want to have intercourse, you have to wait for two days after the pills are inserted to avoid cross infection.