I thumped my index finger closing the window yesterday morning. In the process I split my fingernail, about 2 thirds of the way down and half of the way across. The nail is lifted from the nail bed but still attached. It didn't really bleed. I've put a plaster on it to stop it catching. It's not sore but the thought of whats under the plaster is making my skin crawl. Can I just keep putting a clean plaster on it for the next 6 months until it grows out? TIA