One of my daughters got staph from school and it kept coming back and surfacing on the skin off and on for over a year. Everytime she got a knick or cut from something it reappeared. It spreads so quickly too. It would be a teeny bump the size of an ant bite one day and the next day the size of a quarter. I had to take her in each time for strong antibiotics and topical treatments. I'm always worried that it is still lying dormant and will reappear at some point.