Does it help to have a treatment before and after a flight?

Changes in air pressure when flying can lead to a feeling of pain and pressure in the ears. To keep air pressure inside and outside the eardrum equal, we have natural "drainage" tubes, the Eustachian tubes that connect the middle ears to the back of the nose and throat. The tubes have one-way valves which allow air to escape from the middle ears to the throat; yawning, chewing, or swallowing helps open the valves in the other direction so that air and sometimes fluid can go into the middle ears. As an aeroplane descends the air pressure becomes higher nearer the ground and this pushes the ear drum inwards.

To relieve this, the pressure inside the middle ear has to rise quickly. If there is any blockage of the Eustachian tube that stops air entering the middle ear, then the eardrum is stretched and becomes more and more tense from the outside pressure, causing pain. This can be caused by ear infections, throat infections, hay fever or any condition causing extra mucus in the Eustachian tubes. 

The warmth of the ear candle appears to help the Eustachian Tube to function properly and the slight suction action can help the eardrum regain its correct tension, therefore Ear Candling can be very beneficial and it is recommended that a treatment is given up to 48 hours before and after flying.