The same is true of children who are allergic to penicillin. As they grow, their body chemistry changes and what was once an allergic stimulant might not be anymore.

The best and most efficient way to determine what you are allergic to is to visit a specialist.

This is someone who is skilled in testing people, just like you, for allergies. After a brief consultation, the patient is administered a series of tests to see what causes an allergic reaction.

Allergic reaction article can be found here