The way it seems, you might be suffering from a yeast infection. Yeast is a kind of fungus that leads to some problems like itching, dryness, and discomfort in the vagina. This disease is common and easily cured. Yogurt containing live bacteria might help, and you can use antifungal creams, which are available without a prescription. Besides, try to wear loose cotton underwear and strongly avoid using scented products in that area. If the symptoms last, you can consult a gynecologist to get some more instructions.