Big Toe Bruised!?

so I was at work about a 5-6 weeks ago and I dropped a 170 pound propane tank on my big toe, it hurt really bad for like 3 days and was fine after that, it has a decent size bruise under the nail, it's all at the top of the nail..not the part you cut but at the very toe, closest to the actual skin on the toe, it doesnt hurt any more and doesnt bleed or anything and the nail doesnt seem to be falling off at all, what do I need to do to get rid of the bruise??