Recently, I had my oil changed and mentioned that my power windows would not go down and I had installed a new fuse. I was somewhat taken aback when I saw the mechanic give my car door a swift kick. The window worked! He said "In Florida, they often freeze up and a kick will loosen it." You might try it. I recommend putting something on the door so that you will not dent it!
Probably need a little more info but I will try, if it goes down but not up then I would say the window motor that's behind your door panel needs replaced. If the window doesn't go down or up then I would say check the fuse. But with out more info that's all I got