stomach!!!! The leg hurts so much more, you wouldn't think so but it really does. And it hurts for like 2 days. I let my pens sit oput for about
20 minutes or so before injecting them- there really isn't too much difference between one fresh from the fridge or one at room temp. I've heard Humira can help with fistulas. but it hasn't done much for mine. Maybe in the sense that it lessens symptoms, therefore the fistula is less bothersome overall.