Sulfa, Sulfite, Sulfate, and Sulfur: True Allergy, Cross-Allergy, or No Allergy

Written by: John K. Chen, PhD, PharmD, OMD, LAc Reviewed by Tina T. Chen, LAc;聽Donna Chow Sanchez, LAc; and聽Anita Chen Marshall, DAOM, PharmD, PhD, LAc Sulfa, sulfite, sulfate, and sulfur are four terms that sound similar but have very different allergy profiles. As healthcare practitioners, it is important to understand these four terms to establish …
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