I started my menstrual cycle and a couple days into it I was getting very itchy I took a shower and after getting out of the shower put on a tampon so I can keep it dry and my vaginal area and now my lips on the outside are very itchy burning and are forming a crusty layer that I can just peel off. Thought it was a yeast infection but with the skin issue down there I m not so sure now. I m 34 years old married female with 3 children Please help Thank you