The condition and the treatment
Plaque psoriasis is a skin condition in which a person has raised red patches of skin covered with silvery scales. When the psoriasis is severe, the patches can cover most of the body, and can be itchy, sore, burning and painful.
Secukinumab (Cosentyx) interferes with substances in the body called interleukins that are involved in the development of psoriasis.
NHS Choices (www.nhs.uk) may be a good place to find out more.