Re: Panic Attack or Allergic reaction?
I've never heard of hives as a symptom of panic attack.
I think you had an allergic reaction to something, and then the stress triggered a panic attack. Next time, if you break out in hives, try 50 mg of Benadryl as soon as you first notice it. (Do not drive a car after taking 50 mg of Benadryl.)
You might also want to follow up with an allergist, to see if you have any food allergies or anything.