If a girl is particularly itchy down there, it is recommended to observe the leucorrhoea. The leucorrhoea is treated with different medications if it is the following: 1. If there is a bean curd-like discharge, you can take a sitz bath with 5% sodium bicarbonate. If the discharge is yellow and foamy, it may be a trichomonas infection and can be treated by inserting metronidazole plugs in the vagina and applying mometasone to the vulva for anti-allergy treatment. 3. It is possible that the itching is caused by vulvar malnutrition, and this situation is recommended to use dermatoprost and progesterone ointment alternately to achieve the purpose of treatment.