Why Winter Is the Best Time for Blemish Removal If you’ve been living with a skin tag, a patch of milia or a little red spot you keep meaning to do something about, winter is the time to finally book it in. Why Winter Gives Your Skin the Best Chance to Heal The biggest enemy of freshly treated skin is the sun. After a blemish is removed, the area forms a tiny scab and then new, delicate skin underneath. UV exposure during that time can lead to pigmentation, leaving a darker mark where the blemish used to be. In winter, the days are shorter, the sun is lower and weaker,