Shampoos with zinc, salicylic acid, selenium, or coal tar are sold in many stores. Nizoral (ketoconazole) shampoo (contains anti-fungal) is also available. Doctors might also recommend cortisone spray. Prevent dryness (don't wash hair too often). A primary doctor or dermatologist can look for psoriasis, eczema, or fungal infections if unusual or worrisome scalp symptoms.
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