There is normally a certain amount of fluid in your ears. When too much builds up, it drains through the eustachian (YOU-STAY-SHEN) tube, which connects your ear to the base of the throat. A cold or sinus condition can block the eustachian tube, keeping your ears from draining properly. This causes pressure in the ear, and may rupture the eardrum if it's not relieved. The condition is most common in children, whose eustachian tubes are smaller and more easily blocked. A visit to an ear, nose and throat specialist may correct the condition, either through antibiotics to stop the infection or a minor surgical procedure that allows the ears to drain. If there's already fluid draining from your ears, there has possibly been some damage done to your eardrum and a doctor should be consulted to make certain that it heals properly.