What is sulfite sensitivity?
A person with sulfite sensitivity has an allergy to sulfites, which are natural substances that contain sulfur. Sulfites are used as preservatives or flavor enhancers in foods and medications. Sulfites can be found in beer and wine, where they can occur naturally during fermentation. Sulfites have been banned from most fresh foods, but may be added to preserve processed foods.

What are the symptoms of sulfite sensitivity?
Common symptoms of sulfite sensitivity include hives, eye redness, itching, diarrhea, nasal congestion, and runny nose. Symptoms of severe sulfite sensitivity include difficulty breathing, facial swelling, mouth or tongue swelling, or severe hives.

How does the doctor treat sulfite sensitivity?
Treatment for sulfite sensitivity includes avoiding foods that contain sulfites. Additional treatment includes oral antihistamine medications or oral corticosteroid medications.