In Some Henna Tattoos, a Harmful Dye – Allergic Reaction

August 11, 2008  | By Evans Dermatology

Whereas traditional henna is harmless, black henna contains a dye that can provoke a severe allergic reaction. Dr. Colby Evans from Evans Dermatology explains a case he treated in The New York Times article, In Some Henna Tattoos, a Harmful Dye. In many instances, a single bad reaction to the chemical found in black henna can create a lifelong allergy to certain medications. 

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