Why is it that vagina itches so much?

Infection possible. While it can be a reaction to a product you're using in the vaginal area, it is more likely to be a vulvo vaginitis such as yeast infection or bacterial vaginosis. A quick trip to a gyn physician should resolve the cause and provide you with a treatment.

Related Questions

Why does my vagina itch so much? Am I having an allergic reaction?

Yeast. Yeast infection can cause vaginitis as well as use of allergens like soaps, sprays can result in vaginal itching as well. Need to see your physician to make the diagnosis. Read more...