naphthoquinones and Hyperpigmentation

Topics: Aged; Blister; Dermatitis, Irritant; Hand Dermatoses; Humans; Hyperpigmentation; Juglans; Male; Naphthoquinones

A 64-year-old female presented with facial hyperpigmentation. She had dyed her hair monthly with pure henna powder for the past seven months. After patch tests, the patient was diagnosed as post-inflammatory hyperpigmentastion due to allergic contact dermatitis to pure henna that has rarely been reported. The patient underwent Q-switched Nd:YAG laser treatment and was treated with oral tranexamic acid for 10 weeks. The hyperpigmentation on her forehead demonstrated substantial improvement.

Topics: Antifibrinolytic Agents; Coloring Agents; Combined Modality Therapy; Cosmetic Techniques; Dermatitis, Allergic Contact; Female; Hair Dyes; Humans; Hyperpigmentation; Lasers, Solid-State; Low-Level Light Therapy; Middle Aged; Naphthoquinones; Tranexamic Acid

Decorative henna skin painting can provoke severe reactions in the skin. We report 3 cases of unusual and persistent hyperpigmentation following nonpermanent henna tattoo, which alerted us to identify an additional side effect.

Topics: Adult; Female; Humans; Hyperpigmentation; Naphthoquinones; Tattooing

Topics: Coloring Agents; Humans; Hyperpigmentation; Naphthoquinones; Risk Factors; Tattooing

Topics: Aged; Dermatitis, Allergic Contact; Female; Humans; Hyperpigmentation; Naphthoquinones; Nuts; Patch Tests; Pigments, Biological; Plant Extracts