Itchy scalp is a condition where you experience recurring itching of the scalp. In the medical field, Itchy scalp may be an indication of more serious health problems known as scalp psoriasis. When you are afflicted with scalp psoriasis, you may observe scalp inflammation and redness. Symptoms may also indicate seborrheic dermatitis or perhaps touch sensitive allergies instead, if not scalp psoriasis. Shampoos, c onditioners and treatments to reduce or eliminate itchy scalp and its symptoms.