Suggest Treatment For Painful Bruise On Thigh

2 weeks ago I banged my thigh off the bottom of a huge wooden bedstead. It immediately bruised and was very painful. I am starting to wonder if everything is okay as my bruise has nearly healed but I have a big lump which is swollen and extremely painful, it seems to be more painful every day. I can't bear to touch it. Any suggestions that may help me?