Has MI contact allergy in North America peaked?
“In the U.S., MI has not been banned from leave-on skin-care products, but recently, its use has markedly decreased,” Dr. Shaw commented. “Hopefully, the prevalence of MI contact allergy will also begin to decrease.”
New evidence is promising. In a related study published online in Dermatology, Joel G. DeKoven, MD, MHSc, FRCPC, of the University of Toronto and his colleagues reported the NACDG 2019-2020 patch test results for MI in North America. They found that 13.8% of patients tested positive for MI.
“For the first time, MI positivity did not increase between reporting periods,” they conclude. “The epidemic of MI contact allergy in North America may have reached a plateau.”
Information regarding funding for the study was not provided. Dr. Reeder has financial relationships with the American Contact Dermatitis Society and a publishing company. Several coauthors have financial relationships with the pharmaceutical industry. Dr. Tyler, Dr. Shaw, and Dr. Feldman report no relevant financial relationship.
A version of this article first appeared on Medscape.com.