You kick the beast until he lets go of your foot after about the tenth kick. You scramble up the stairs dragging your foot behind you as the beast lunges up. You roll off to the side as the beast falls through the rotten boards. For a minute there is no sound but then you here a loud thud. You realized just how long that fall must have been and don't want to find yourself its victim.
You quickly get out of the basement and shut the door behind you. Using all of your energy, you get up, redo the nails as much as they will go and baricade the door.
Your pretty thrashed from the attack but manage to limp your way into the bathroom where you find a medical kit. After cleaning the wounds, you stitch them up yourself having had training as a doctor before dropping out of med school last second.
You really don't want to have to get treated for rabies and head home. Besides, something told you that if that thing had anything it was a lot worse than just rabies.