question: I have had shingles in my left eye cornea, and I take two drops of a steriod product to lessen flare-ups.  I played some raquetball for a couple hours, and it seemed that I had a flare - up with the shingles.  My eye was a bit blurry and I took a nap - and when I woke up it was a little better.  My question is: Does strenous excerise cause a flare-up with shingles? Thanks, Don