It can develop at any age, but it is usually diagnosed in those aged between 15 and 25 years. Thirty percent of people with psoriasis have a family member with psoriasis. The condition affects men and women fairly equally, with women tending to show signs at a younger age than men. As stated above, certain medications can trigger flares of psoriasis. These include beta-blockers, NSAIDS (eg, ibuprofen, naproxen), lithium, antimalarial drugs, and oral steroid withdrawal. Approximately 10-30% of people with psoriasis also develop psoriatic arthritis, inflammatory arthritis that causes painful, swollen joints.
See your doctor if you have severe psoriasis or if self-care measures are not helpful.