In future refer all incidents to the first-aider. This includes gunk in hair, stuff in eye (this has the potential to be serious) cut knees, bumps and bangs that you can't even see, broken finger nails, bumped heads, scraped knees, infinitesimal cut fingers - the lot. Never, ever, feel the temptation to help out. Never, ever, 'kiss it better.' Your excuse is 'I thought it better to be on the safe side' No-one can criticize you for that. First rule of teaching: cover your own posterior. Do it.