I was out in the sun yesterday, and my skin on the right forearm is red, and bumpy yesterday, and today it is sort of itchy today, a bit less red, and bumpy. Am I allergic to the sun? Yes, I'm blonde and green eyes, and I have had skin cancer (squamous cell carcinoma), but this is just when I go out in the sun, but what really concerns me is that yesterday, I had on a long sleeved shirt, and wore a hat. I was out all day, so before I went out I put on sunscreen. I'm not burned, and my skin is very fair. I used to go out and get burned the first time, and they I would be ok for the rest of the summer, now I don't even try to get a tan, I stay covered up and wear a hat.