Most people who have pink eye stop being contagious with the pink eye after 24 to 48 hours after treating the pink eye with antibiotics.
So it's best to stay home from school or work for a minimum of 48 hours after treating the pink eye to be sure you're no longer contagious with the pink eye.
Stay home from school or work or keep your child home from daycare until the pink eye has improved to avoid spreading the pink eye to other people or kids.