I Dropped A Folding Table Top On The Top Of

I dropped A folding table top on the top of my foot four days ago, it hurt extremely bad when it first happened, but after fifteen minutes of ice the pain subsided and I was able to walk on it without pain. I thought all was better until I went to put my shoe on a couple of days later, the top is still tender to touch and looks a little swollen right where the table landed. it does not hurt when I walk unless something puts pressure right on where the injury occurred. is it something I should have looked at. or will it heal on its own?