29/08/2026
Not every reaction after hair colouring is ‘just irritation.’ 🧴⚠️
Hair dye–induced Allergic Contact Dermatitis (ACD), commonly associated with PPD (p-phenylenediamine).
Intense itching, redness, swelling and oozing/crusting can develop hours to days after exposure.
Early recognition and appropriate treatment can prevent a more severe reaction.”
Diagnosis: Hair dye–induced allergic contact dermatitis (suspected PPD allergy)
ClinicalDermatology DermatologyCase