I sold Remicade, which is a biologic, in addition to Humira....which I worked on the clinical side.....so I know quite a bit about the biologics for psoriasis, and RA. Plus, my Mom is on Remicade and has been for 2 years......she had psoriasis, and due to a spider bite,believe it or not....developed into RA.....yes....having a trauma, may push a psoriasis person on into RA....if they are headed for RA eventually.....
IM me and I can answer questions for you regarding the biologics.
Shirley