So I have pretty sensitive skin, especially towards the sun. I get sunburnt very easily even with strong sunscreen on. But during the late spring to early fall, I get these tiny little bumps that itch and itch, and there's no cream I've tried that helps them. They get a lot worse when I go out in the sun, and form into these large bunches on my arms. They'll get better if I stay inside a lot, and it takes a long time for them to get any better, but I don't particularly like avoiding the sun. When they start leaving in the early fall, what's left behind is very white skin that won't tan at all, and stays that way for most of the winter. Also, I have these white pigmentations on my stomach that only show up when I start getting a tan like uneven polka dots... which is odd. :/ I've had all this for a long time now, and I've been hoping they wouldn't show up again, but they have flared up once again. Is there any way I could fix the bumps and pigmentations without heading to a doctor? Or if I could possibly know what these even are?