Urticaria

So I finally went to the doctor's. For those of you who do not know why, please view the post below. It's basically urticaria (layman=body rash) and he gave me some medicine. "Please complete the course of medication." he said. I was ok with that, taking 2 weeks of medication. But the thing that made me question his practice was... at the bottom of the medicine label there was this warning -

"Should rash appear, please stop medication and consult doctor."

So what now? I go straight back to you and we create a money making cycle for you?