The only food I was ever allergic to was oranges. I love oranges, tangerines and lemons. But I would end up with a nasty looking rash if any of the juice or rind touched my skin.
I was out to dinner one night with friends when I noticed one of the women was getting a rash around her mouth. The dinner she ordered had come with a wedge of orange and she had just eaten it.
I asked if she knew if she was allergic to the orange juice or peel and she said yes, but she loved them so much she ate them anyway.