Water stays in my left ear for days after I go swimming. Nothing I try works.?

You could try using swimmers ear drops, which dislodge trapped water inside the ear and allow the water to come out quickly. They also prevent any ear infections which could be caused by trapped water and you can buy them online or perhaps at a local pharmacy. I would also buy some ear plugs for when you are swimming to prevent water from getting into your ears and hopefully stop the problem. :)