If vulvar itching occurs, it is not recommended to use potassium permanganate to douche, because blindly using potassium permanganate to douche without clarifying the premise of pathogenic bacterial infection, if the vulvar itching is caused by Candida infection, it creates an acidic environment, which enables Candida to multiply faster and aggravate the clinical symptoms. Therefore, in the clinic, if there is vulvar itching, without the premise of clarifying the pathogenic bacteria infection, it is recommended to use 10% of the cleansing of the vagina, which is more scientific and more reasonable. This is more scientific and reasonable, because the cleansing not only treats Candida infection, but also treats trichomonas vaginitis, and also treats bacterial vaginosis. So don’t use potassium permanganate douche for the purpose without knowing the pathogenic bacteria infection.