Summarize this article:

Most often, the sensation of ear pressure isn’t a blockage at all but a brief dysfunction of the Eustachian tube in your middle ear. You can force this tube open to equalize the pressure in your ear with various easy steps, including:  Yawning Chewing Swallowing Trying to exhale through your nose while pinching your nostrils closed For sinus congestion that leads to ear pressure, you can also help reduce the pressure by simply staying hydrated. Fluids help to thin the mucus causing the pressure. Try to drink at least eight cups of water each day. By adding an additional pillow and keeping your head elevated, you make it easier for your sinuses to drain properly. This will help to reduce ear pressure. Try heating a towel and then placing the towel over your ear for several minutes. You can also place a cup over the portion of the towel covering your ear to help trap the heat. If the pressure is due to sinus congestion, you can also take a hot, steamy shower. This will help to thin and drain the mucus plugging your sinuses, which will help to relieve the pressure.

Summary:
Equalize the pressure in your ears. Stay hydrated. Sleep with your head elevated. Put a warm compress on your ear. Take a hot shower.