Overview
Hair dye reactions are allergic or irritant responses to chemicals in hair coloring products, causing scalp irritation or systemic reactions in sensitive individuals.
Symptoms
Redness, itching, or burning sensation on the scalp Swelling of the scalp, face, or neck Blisters or rash in severe allergic reactions Rarely, difficulty breathing or systemic reactions
Causes
Allergic reaction to ingredients such as para-phenylenediamine (PPD) Prolonged exposure or repeated use Pre-existing skin conditions increasing susceptibility
Diagnosis
Medical history and symptom assessment Patch testing for allergens
Treatment
Immediate washing off the dye Topical corticosteroids or antihistamines Seek medical attention for severe reactions
Complications
Persistent dermatitis or skin damage Severe allergic reactions can be life-threatening
Prevention
Perform patch tests before using hair dyes Use hypoallergenic or natural hair dyes Follow instructions and limit exposure time