I got hives once. THe dr gave me a shot of cortisone and a shot of valium, then I was fine 10 minutes later. I wonder why your dr is messing around with weak pills (I don't know what they have you on but if they can stop it in 10 minutes, why would they make you wait?) They also gave me a prescription for valium and allergy pills.
hope you feel beteer soon. If you still feel bad, I would go to another DR and get a shot
don't forget to ask for the valium!!