I am confused. i have sulfa allergy since childhood, does it mean i also have allergy to sulfite in foods and sulfate in water? or are they different elements?

These do have different molecular structures so allergy to one does not automatically mean allergy to the others.

An allergy protocol to test, confirm and desensitize is available. Have you had a reaction as an adult? A description would be helpful. Children are often diagnosed with an antibiotic allergy due to rash with a viral illness, when they are actually not allergic. To determine if you are allergic, please follow up with your physician. Watch for signs of shortness of breath and respiratory difficulty