There is a layer of dry skin on the scalp, may be related to the hairy erythema, tinea capitis, but also may be related to the unusual type of psoriasis and other factors, the treatment needs to use drugs to improve.
1. Hairy erythematous chaff rash: it is a chronic scaly, inflammatory skin disease, when the lesions first appear, there are often grayish-white furfuraceous scales on the scalp, and it can be improved by taking oral retinoids such as isotretinoin.
2. ringworm of the head: refers to the dermatophyte infection that involves the hair and scalp. Tinea capitis lesions at the beginning of a cluster of red papules, can be expanded to the surrounding into a round or oval, covered with grayish-white scales, can be oral antifungal drug therapy such as itraconazole or terbinafine, hair cutting as far as possible will be cut off the diseased hair, shampooing with sulfur soap or 2% ketoconazole detergent shampoo.
3. Ordinary type psoriasis: It is a kind of immune-mediated chronic, recurrent, inflammatory and systemic disease induced by the common action of heredity and environment. The scalp is often covered with a thick layer of white scales, and treatment requires topical vitamin D3 derivatives such as calcipotriol and calcium-modulated phosphatase inhibitors such as tacrolimus.
Patients with a layer of white dry skin on the scalp, there may be other reasons, it is recommended to go to the hospital in a timely manner to carry out relevant examinations to clarify the cause of the disease, and then actively symptomatic treatment. The medication should be used in accordance with the doctor’s instructions, do not self-medicate.