For those without psoriasis, the common autoimmune condition that generally manifests as raised red skin with silver-white patches of dead skin, the condition may appear to be just a minor cosmetic annoyance.

As a child, Alisha B. had a few patches of what looked like a rash on her knees and elbows. She and her parents didn't think anything of it. Then things changed, and her skin has ever been the same since.