Hi Sniperjay, welcome to the forum!
If your car has a BMW warranty they might replace it but if not then I've been told that they need replacing & can't be dried out. *However* I have the same problem on one of mine and have just bought a replacement from another member (on the buy/sell forum) and i think it might be possible to dry it out if I got the original one off, took the bulb out and left it in the airing cupboard for a while, has to be worth a try. To remove it I think you'll need to get it on to a ramp of some sort, be careful when taking it off though as from my experience with them it seems like the mounts are easily damaged. (I haven't removed one before but have had bumper replaced and badly refitted/replaced fogs :x)