what causes an itchy scalp besides lice
An itchy scalp is very common, particularly in adults, and may or may not be due to any disease. If there is absolutely nothing visible accompanying an itchy scalp or just a few flakes of dry skin, you may have a mild case of dandruff. Dandruff (seborrheic dermatitis) is the most common cause of an itchy rash on the scalp in adults and tends to affect the whole scalp; psoriasis is another common cause of itchy scalp and is often found just on the back of the scalp. Both conditions, dandruff and scalp psoriasis, have patches of redness and scaling and may also affect the ear area.