Vulva problem. Its dry, itching. At first it was really painful, it felt like a cut. I couldnt have intercourse. Now its still dry, with crusty white kind of. And itchy even around my anus. I feel like it is swollen near my vagina. I also notices a lump (like a water balloon) under the skin on my outer lip close to my clitoris. I am on cephalex because my doctor thought I had cellulitis in my foot. Could you help?