THE MIRROR
http://www.mirror.co.uk/news/uk-news/teenage-mum-whose-skin-sheds-8982373
Professor Chris Griffiths from the University of Manchester & British Skin Foundation spokesperson said: "Psoriasis tends to come and go unpredictably and can appear at any age.
"Psoriasis doesn't scar the skin and appears as pink or red coloured areas on the skin with silvery-white scales, known as plaques.
"Plaques of psoriasis usually appear on the knees, elbows, trunk and scalp but are not exclusive to these areas.
"Flare ups can happen from a combination of genetic susceptibility and environmental triggers such as streptococcal tonsillitis or pharyngitis, stress, and some medicines.
"Treatment depends on the extent of the disease and varies from topical creams and ointments through to light (UVB) therapy, systemic medicines such as methotrexate to the new biologic injectable drugs which are highly effective for severe cases."