Q: Ever notice how psoriasis doesn't really get impetiginized/superinfected but eczema does? Why do you think that is?
erythroderma - think about insensible fluid losses.
inverse - avoid high potency topical steroids given location.
pustular - can be ill w/fevers (Von Zumbusch type), & low Ca2+
guttate - often 2/2 strep throat! may need abx!
Anti-TNF are >> ustekinumab for CV risk mitigation.