Suggest Treatment For Swelling And Bruise Of Ankle

Hi I'm Kathy,A week ago my dog ran into me from behind and knocked me to the ground. i hit very hard,ended up with a swollen bruised ankle on the inside and outside of my ankle.my knee was bruised. this evening i noticed aa very tender red area above my ankle,,it seems to be coming from the inside of my ankle,and is as big as my whole hand very tender,very painful. What is this?