Resist the urge to rub it, and don't try to pluck out the debris. Instead, rinse your eye with water—ducking your head under the shower, hose, or tap—doing your best to open your eyelid. If that doesn't flush everything out or you still feel irritation, visit the ER. A doctor may remove anything lodged in the eye using the medical version of a Dremel tool, a far better option than you and a pair of tweezers. Then you'll be given antibiotic eyedrops. "A scrape of your cornea will heal in a few days—unless it gets infected," explains Dr. Howard Mell, a spokesman for the American College of Emergency Physicians.