RE: Allergy question ...
Allergies usually hit quicker than a "day or two" after being exposed. On the other hand, it sometimes takes year to develop an allergy to something. My wife had a very severe allergic reaction to a medication that she had been taking for almost three years. Four trips to the emergency room in three days.
You can be allergic to some of the craziest things. I had a cousin that was allergic to hismother, to the point an Aunt raised him from the time he was an infant to the time he went into the Navy..
A trip to a good Allergist would be in order. They can test to see what you are allergic to. They can better answer your question that we can here on RCU.
Don