it should clear itself in about 2-3 weeks from the start. but the following may help with relief and speed up recovery. try taking oral decongestant (pseudoepherine) and antihistamine and a steroid nasal spray like beconase or nasonex or flonase. i know these are all for allergys and sneezes, but they also work very well for ear congestion problems. and i'd advise sleeping with the bad ear up as it helps drain fluid into your throat.