An icon in the shape of a lightning bolt. Impact Link So, you scraped your knee or picked at a pimple. You now have a wound, or maybe a scab, and the last thing you want is for it to form a scar. The ...

Anyone who's endured their share of childhood scrapes has probably heard some version of the motherly admonishment, "Don't pick that scab, you'll just make it worse!" It turns out, Mom was on to ...