What should you know about dandruff after keratin treatment?

A keratin treatment can change which products touch the scalp and how often the hair is washed. Residue, fragrance, heat, or chemical contact may irritate sensitive skin. Separate from treatment-related irritation, dandruff involves visible flakes and may overlap with seborrheic dermatitis, which can also cause itch and greasy or inflamed scale.

Flaking can be mild and temporary, but a painful, burning, swollen, or weeping scalp suggests more than simple dryness. Hair shedding, thick plaques, or flakes extending beyond the hairline also merit assessment because other scalp disorders can resemble dandruff.

Follow the salon's washing instructions, but stop using a product that clearly causes burning or swelling and rinse the scalp thoroughly. Avoid scratching, very hot water, tight hairstyles, and adding oils or fragranced products to mask the flakes.

If ordinary care does not settle the problem, a clinician or pharmacist may suggest medicated shampoo treatment or topical antifungal treatment, depending on the appearance. Apply a medicated product to the scalp as directed rather than treating only the hair lengths.

Arrange an assessment if flaking or itch persists, keeps returning, or interferes with sleep. Seek prompt care for facial swelling, hives, blistering, severe burning, pus, spreading redness, or painful cracks after a hair product.

Urgent help is needed for trouble breathing or swelling of the lips, tongue, or throat. A clinician can separate contact irritation from dandruff, seborrheic dermatitis, psoriasis, or infection and recommend care that will not worsen the treated hair or scalp.

Tell the clinician the treatment date, products used, and when the symptoms began. Ask whether this looks like dandruff or contact irritation, which shampoo is compatible with your scalp, and what signs should prompt you to stop a product.