Horrible reaction to Palmer's anti itch oil

[NMR]

I had a horibble reaction to this anti itch/stretch mark oil. I broke out in extremely itchy rash all over my stomach, thighs and bottom. I do have very sensitive skin in general. Has anybody else experience this and how did you get rid of the bumps. I've been using Palmer's cocoa butter which I have not had a problem with. Thanks.