I have vulvar lichen sclerosus and IBS. Lately, I've been having intense itching and bleeding in perineum and around anus. This evening, I roof took a look down there to see what was going on. My perineum is solid white on the outside, ripped down the middle with a small amount of yellow discharge. Around my anus is a dark red, almost purple rash. I have been having constant diarrhea for over a day, and it burns, and causes very bad pain all around my anus. I also noticed a blue, black shiny bump toward the to of my anal region. What are these things and what can I do about them?