I scratched my eyebrows and now their red and sometimes go flaky like snow?

hey, don't sweat it. the flakes are just dry skin, and they flake of if you scratch it. that's normal. the redness is a result of your itching it...i urge you to try to stop itching. i'm not sure why they were itching you in the first place, but at this point they're irritated from being constantly itched. i suggest first and foremost following your dermatologist's recommendations, and if there's any persisting issue to let them know immediately. my personal advice is to apply a cooling agent, like a cool, damp cloth or sliced cucumbers (sounds weird, but works) to your brows to stop the itching, and then try to lay off touching them. also they may be dry, so use basic moisturizing lotions like eucerin or aveeno (unscented and gentle) in small quantities to the brow, let it set , and then wash with cool water. hope this helps, good luck, and try to stop scratching :-)