If you have water trapped in your ear after a sinus rinse, you can try the modified Valsalva maneuver to help drain the water from your middle ear to your throat. Here's how to do it: pinch your nose shut with your fingers, close your mouth, and blow gently while swallowing quickly. This creates negative pressure that can help move the water out of your ear. You can also use a decongestant nasal spray like Dristan or Otrivin 30 minutes before trying this technique for better results.