3-6 months is what I have been told. Although, sometime back I developed "lichenoid reactions" on my right leg, which are associated with GvHD. They appear similar to the more common lichen planus, but have a different cause. It was first thought that hey were reddish warts, but that is not the case. Just a few days ago, I noticed that they are flaking off, like eczema as it heals. So, the ECP may be showing evidence of effectiveness.

On the blood front, my B-12 and folate are fine. Ferritin is about twice what it should be, probably a reflection of excess iron that I accumulated from the transfusions two years ago. So, Monday we will draw blood, 'werewolves of London' style, to see what my hematocrit level is doing.