Kat's journey with laser therapy (XTRAC)

[Fred]

   

The rheumatologist gave me a simple explanation (which I always appreciate)  He told me to think of it as a river with branches.  At the end of one branch is skin psoriasis and the end of another is psoriatic arthritis.  Where do you build the dam?  Some biologics target one or the other, and sometimes it helps both but a TNF inhibitor works "further back" as in before the river branches. 

That's a good way of putting it.