If you have a minor cut or scrape…
Should you keep it covered, or let it breathe? Ohio State University’s Wound Center says: Both. Keep it covered when you’re out and about, and your skin is exposed to pollution, germs, and debris. At home, uncover it and let it breathe - especially while you're sleeping. Because that’s when the body uses oxygen to produce new skin cells and collagen, which seals the wound and helps it heal.