Itchy!

I had a severe allergic reaction to some laundry detergent I tried. It stinks. I went to the doctor because it looked worse than hives. They really itch and they are totally disgusting looking. I'm so ashamed! I am wearing long sleeves in this insanely nice weather because I am so embarrased. The thing is...I don't think the doctor knew what she was talking about. What if it's more than an allergic reaction? That's disturbing. It's been on my arms and legs for over 2 weeks! Should I go to the doctor again? Any advice?