Psoriasis is a skin condition that causes red, flaky, crusty patches of skin covered with silvery scales. These patches normally appear on your elbows, knees, scalp and lower back, but can appear anywhere on your body. Most people are only affected with small patches. In some cases, the patches can be itchy or sore.

Psoriasis is a long-lasting (chronic) disease that usually involves periods when you have no symptoms or mild symptoms, followed by periods when symptoms are more severe. There's no cure for psoriasis, but a range of treatments can improve symptoms and the appearance of skin patches.

In most cases, the first treatment used will be a topical treatment (creams and ointments) applied to the skin.

https://www.nhs.uk/conditions/psoriasis/

How to treat scalp psoriasis – this video demonstrates techniques to treat scalp psoriasis, including how to apply treatments to the scalp and how to remove hard scale.

Patient Information Leaflet - Psoriasis an overview

Patient Information Leaflet - Psoriasis - topical treatments