What Causes Throat Pain And Rash On Body After Eating Cranberries?

I had eaten some cranberries, went to work started to have headache took 2 asprin my throat started to hurt ,i started to itch, and then heat and angry looking red rash that wraped around my intire torso, neck, and privatea area, i took allegra and used hydrocortozone cream and it startef to help, the rash started down my legs and feet.its been 48 hours and the bad rash is gone but still itching and some. rash popping up.