How Long Should You Actually Leave on That Acne-Busting Hydrocolloid Patch? A hydrocolloid patch—aka a pimple patch—can work all sorts of magic. But how long is *too* long to leave them on?

"Prevention is always the best strategy, so consider using a wrinkle cream before wrinkles are especially noticeable," says dermatologist Dr. Geeta Yadav, MD. "If you can already see a wrinkle ...