What Kind Of Allergies Cause A Skin Rash And Itch?

I have a skin rash and I think it might be some kind of allergies, but I’m not sure which kind, can anyone help?

Has Anyone Ever Heard Of An Allergy To Sugar That Causes Really Bad Skin Rash?

I have had this crazy allergy since I has 11 years old. Although it took about 6 years for us to figure out what caused it. I have never heard of anyone that has this same allergy. The rash is not only itchy but very painful sometimes i have it on my legs sometimes on [...]