One of the easiest ways to pop your ears is to chew a piece of gum or suck on a piece of hard candy. This forces your ears to pop on purpose by allowing the muscles around your eustachian tube to open. The movement of the jaw equalizes the pressure between the inside and outside of the eardrum upon the opening of the eustachian tube.
Purchase earplugs that are specifically designed for flying. The earplugs restrict the flow of air into your inner ear, allowing it more time to keep up with the rapid change in pressure. Earplugs can be purchased at your local pharmacy or drug store.
There is a special way you can breathe to release the pressure in your ears while flying. Inhale, and then gently exhale while holding the nostrils closed and the mouth shut. Repeat several times, especially during descent, to equalize the pressure between your ears and the airplane cabin.
Purchase an oral or nasal spray decongestant. A decongestant can be used before, during, or after the flight to relieve any built-up nasal congestion, and to open the eustachian tube. For best results, use a spray decongestant 30 minutes prior to landing. If is best to take an oral decongestant 30 minutes to an hour prior to your plane taking off.
The best way to control the change in pressure between the inside and outside of a baby's eardrum is to have the child suck on a bottle or pacifier during take off and landing. It is also important to make sure that a baby does not sleep during descent.