Itchy Pregnancy

I know your stretch marks being itchy is normal during pregnancy, but I'm so itchy this last week it's to the point I'm losing my f-ing mind.  I try my hardest to ignore, use plenty of lotion, take care of my skin and even used itch cream and I can only hold off for 4-5 minutes before I lose my mind and start scratching like an angry cat.  I have no idea what to do.  My doctor is zero help with any of my pregnancy symptoms and just says "that's normal" because she's a bitter person.  I'm afraid I'm going to cause permanent damage or an infection if I can't calm down with the scratching.  Is anyone else having this isssue?