Many people use the term vagina incorrectly when they mean to describe the vulva (entire outer area skin and inner folds). The vagina refers only to the inner canal. Please encourage using the right terminology with children, teens, adults so they can safely describe any symptoms. Women sometimes suffer for years with eg. lichen sclerosus, a chronic skin condition that affects the outer skin in a figure of 8 (around the labia majora, over the clitoris, at the perineum, and around the anus). It can be mistaken as “yeast infections” that affect the vagina, leading to delayed diagnosis. The itch, compulsion to scratch, tears (like paper cuts), and flares come and go. Lichen sclerosus is not contagious, it is a skin condition just like people may have eczema. It is common throughout life but moreso in pre-pubertal girls and menopausal women, when estrogen levels are low. Treatments include steroid ointments and estrogen cream during flares. Your skin can return to normal! Treatment is important to prevent long-term structural changes in the anatomy (scarring or flattening) or tiny risk of skin cancer.
Good vulva hygiene includes washing daily with water, using cleansers on hair-bearing areas, never using douches or soap internally. A gentle cleanser like cetaphil is also safe on the outer genitals. Sitz baths (or in your bathtub), soaking in warm water for 5 minutes daily, are a very helpful way for cleaning but also for any vaginal or vulva cysts, or recurrent vaginal irritation/infections to resolve.