About four years ago I have become increasingly sensitive to the sun, that is, I burn more quickly with greater pain and redness. The only thing that had changed for me was taking Propecia.
I noticed that behind my ear, after sun exposure I had a few hard red bumps which itched. They got worse after the first day or so and the itching was somewhat subdued. Interestingly, the bumps appeared to be in the exact spot I had recieved a realy bad sun burn two years earlier. The bumps have been there now for 3 months, now they are quite subdued and seem the be fadding. However, I believe that if they are rexposed, those exact bumps will re-flare up..
I also had similar bumps in two spots on my back. Again after a really bad sun burn ...they however were the result of scarring from picking etc. That said, they are still there after 4 months. They itch somewhat and are hard (about 5mm in diameter).
What I am really concerned about is the extreme intolerance I have to the sun after about 30min of continual exposure, when in the past I could go the day being out in the sun (not tanning of course).
Any help would be appreciated.