there is a condition called polymorphous light eruption; it’s a long name we just call it pmle. what happens is that usually when you have short burst of exposure after not being in the sun for a while you notice this rash with the sun and it can be very itchy and uncomfortable. this is a sensitivity to the sun. as you have continued exposure generally it wears off and then the next time you go on vacation or the next spring is when you will start to see it again. it's important to take antihistamines which you can get from your dermatologist or physician or over-the-counter. sometimes topical cortisones help calm it down but really avoidance of sun as much as possible is the best way to treat it.
when i am out in the sun i get a rash why?