Hello. I have been experiencing some itching on my vagina area for a week or so. I have noticed these yellow scabs on the lower portion of my pubic area, but kind of on the top of my prepuce. If I pick the scab, it bleeds. It basically looks like I've itched it into a sore that's trying to heal, but these yellow scans are starting to worry me. I've been with the same partner for 3 years, so I don't believe it is an STD. What should know do? Thank you.