Psoriasis is a chronic (long-term) inflammatory skin condition that can affect any part of the body, including the scalp. Scalp psoriasis can cause dryness, red patches, bleeding, and dandruff ...

Rambhia recommended this pick, Neutrogena T/Sal Therapeutic Shampoo. It contains 3% salicylic acid and can treat a variety of scalp concerns, including dandruff and psoriasis, says Dr. Rambhia.