Sinus Medication Solution

I had it yesterday yannow lots of green mucus constantly blowing my nose. sinus pressure. and today it just stopped. i coughed up some green mucus this morning and had a little coughing but it pretty much just vanished. i havent taken any medicine bc i had a performance at disney concert hall and was too busy take anything. anyways, is the sinus infection gone for good or is it probably gonna come back tomorrow? thanks!