| http://www.w3.org/ns/prov#value | - This report presents the case of a patient who experienced severe hair loss after the use of a hair dye containing PPD. We concluded that the explanation for the severe hair loss in our case was a concurrent sensitization and allergic reaction to PPD, as the product had been applied repeatedly over a long period of time.Hair dye reactions are usually diagnosed by the patients themselves, and epide
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