What is it?
Psoriasis causes dry, scaly patches and can flare intermittently.
Symptoms and important signs
Itchy or painful plaques; scalp and nails may also be affected.
How is it assessed?
Assess lesion type and extent, nails and any joint symptoms.
Care and treatment options
Topical treatments, and in more severe disease phototherapy or systemic medicines, are individually selected.
When to seek help
A widespread flare with fever or general illness needs urgent assessment.