Take a bath in epsome salts.??Certain laundry detergents i use give me rashes like mentioned above.
Umm try a few things, and oatmeal bath works wonders. A hydrocodone cream will help sometimes, they also sell a benadryl cream. It might not be your meds, it could be something as simple as a shirt you tryed on at a store. Have you changed soap of any kind latley? Laudry, shapmoo, body wash? Try a new lotion? I have to be really careful I brake out so easy. But yeah try one of the creams for sure. They might at least help with the itching.