The benefit of sodium bicarbonate sitz bath is to change the acidity and alkalinity of the vagina, which is suitable for vulvovaginal pseudofilamentous yeast disease caused by Candida albicans infection. Because Candida albicans likes to grow in an acidic environment, the use of sodium bicarbonate will change the local pH of the vagina, so that the local alkaline environment, inhibiting the growth of Candida, so the corresponding symptoms caused by Candida albicans infection will be improved, but not to achieve the goal of a complete cure. It is recommended that other drugs be inserted into the vagina for treatment, or oral treatment of Candida drugs for treatment, will achieve the goal of cure. Sodium bicarbonate is not recommended in the absence of symptoms, as it can damage the internal environment of the vagina and cause other diseases.