I'm thinking about the response above of @loribmt, and wanted to pipe in that the interferon I'm taking for ET/PV does not seem to caution against sun exposure. I see it referred to as immunotherapy instead of immunosuppressant-- is that an explanation of the difference?

I have just started treatment recently, Besremi injections and several phlebotomies. The last phlebotomy was a bit dramatic, as the needle shot out of my arm mid draw. My platelets are very high, and the blood withdrawal is barely able to keep Hematocrit levels near normal; all these signs are frightening, but I am playing a waiting game now, hoping treatment will produce results before any clotting or stroke happens. I'd like to learn more about supplements (beyond aspirin) to prevent strokes, but for now I'm relying on Qi Gong exercises and breathing exercises to ease the psychological stress and very likely physical resistance in my veins/arteries.

Health to all of you!