Sounds like you have an ear infection - I get them all the time with colds and flu. They usually go after a few days, but if its that bad, you can get some medicine for it (2 bottles of syrup - one that tastes like strawberry and one like banana. Yum!). If its related to wax build-up, you can buy these things called ear candles in health shops; they're a native american remedy, and you place one in your ear and light it, and wait until it goes down (they won't burn you, as they stop before getting close to your head). All the wax becomes trapped in a little compartment at the end of the candle.