Alopecia Areata After Severe Allergic Contact Dermatitis to a Permanent Hair Dye

The document discusses a case of alopecia areata that developed following severe allergic contact dermatitis caused by a permanent hair dye. The authors, affiliated with the Dermatology Department at Hospital Universitario de Toledo and Universidad de Castilla-La-Mancha, conducted a thorough investigation and analysis. They emphasize the importance of recognizing allergic reactions to hair dyes as potential triggers for alopecia areata. The study highlights the need for awareness and careful consideration of hair dye ingredients to prevent such adverse effects. The authors declare no conflict of interest.