Should We Label Patients With a Sulfa Allergy? Lesson Learned the Hard Way Med Ed 101 Sulfa Allergy Card Your Sulfa Allergy Noted Equal Eats Can you use skincare products with sulfur if you are allergic to sulfa? Yes! Someone with a sulfa allergy can have an allergic reaction to certain medications that contain sulfa, such as Absence of Cross Reactivity between Sulfonamide Antibiotics and Sulfonamide Nonantibiotics New England Journal of Medicine Allergy to Sulfa Medications: Drugs to Avoid GoodRx