Top the gauze with clear nail polish or nail glue. Use a toothpick or tweezers to spread the sealer over the area. Let sealer dry. Snip away any extra piece of gauze. Use the soft side of an emery board to file down the area and make it smooth. The final step is to paint a coat of nail polish over the damaged area. If you aren't able to use this fast fix to repair the nail, cover it with a bandage at the very least. You may want to see a nail technician to properly address the issue. A broken nail is never fun. While it's impossible to prevent all breaks, consider these tips. Wear gloves when you're doing work around the house. That goes for everything from dishes to gardening. Use hand lotion and creams on a regular basis to prevent nails from getting dry and brittle. Go easy on the nail polish remover, which dries out nails and makes them susceptible to cracking.