The size and the color are lighter and darker; the display is completely irregular. To be more specific: looks like I was playing with paint and it splashed on me. I noticed a couple of more spots on my legs but nothing else. I recently got back from the Dominican Republic, so I am tanned, but no sun exposure since then. No itching, not dryness.
My dog got bitten by ticks, so I am also concerned about a possible bit. I have no health symptoms.
What could be?
What can come up on my skin after three days without sun?
What should I do?