Consider holding the med until you've spoken to a dr and you really should get it looked at if you don't get a clearance from your pdoc. This doesn't sound like THE RASH that you are describing but you don't ever want to mess with it.

I had THE RASH (which is very rare so that's one good reason to think you'd be ok) and it was quite distinctive. I actually noticed a little tiny bumpy rash on my cheek one evening and thought nothing of it. So I took my dose and by morning I had THE RASH badly, all over my face and neck, including my eyelid and lips.

THE RASH is distinctive and you'll know if you have it but you can't know that another rash won't become THE RASH. THE RASH feels like a burn and feels like the skin is still burning. It was very warm to the touch and sort of blistery without having fluid blisters. It was dry and my lips peeled. It was also very, very itchy but too painful to scratch. A fever can go with it; I never knew if I had that because I had bronchitis at the same time and had been running fevers anyway.

Just don't panic but don't ignore it either. I wish very much that I hadn't taken more after noticing the little patch of rash; I truly didn't think b/c I was out of the danger zone.

I hope the dr gets back to you.