I had childhood allergies.
Cotton: Real thing This is what started it all, luckily being born in the early 70s when polyester was king helped a lot.
Lemons: I would break out in hives, start wheezing, etc but I love me some lemons
Tomatoes: same as tomatoes, but I still dislike raw tomatoes, ketchup, sauce still the only way I can stand these things(sucks cause the wife loves them)
Beans: Was supposedly allergic, according to the doctors, never had a problem with them though.
Mold: This one sucked big time(according to my parents) the house they owned was built in the 1880s it was old, mold was common in it, especially the dirt basement.
My wife and eldest daughter are pretty much allergic to anything with four feet and fur, from hamsters to horses. Daughter is allergic to grass(freshly cut is the worst), bannas, and all sorts of things. The Doc said, "about the only thing she isn't allergic to is cockroaches".