Psoriasis
An immune-mediated condition causing thickened, scaly plaques.

Overview
Psoriasis causes accelerated skin cell turnover, producing well-defined plaques with silvery scale, commonly on elbows, knees and scalp. It can also affect nails and joints.
Common symptoms
Flaking or scale
Visible shedding of skin flakes or plaques.
Itching
An uncomfortable sensation prompting scratching.
Redness
Persistent or intermittent facial or skin redness.
Why it happens
Immune dysregulation, genetics, streptococcal infection, stress, smoking and certain medications.
Self-care that helps
Moisturise daily, avoid skin trauma, manage stress and stop smoking where possible.
When to seek advice
Seek advice if plaques are widespread, painful, or if you develop joint pain or stiffness.
