He isn't on any pain Meds at the moment. He had celulitus(sp?) infection start in the foot on the leg of the knee replacement. He is on 4 antibiotics because if the infection gets to his knee it could be deadly. He is going through what they call "sundowning". Dr says it sometimes happens to elderly people when they go through trauma. He talks off the wall and doesn't remember who people are at times and also tries to get out of bed. My mom said he showed a little aggression today and hit the bed. Im just here to try to calm him down and keep him from getting out pf bed if he wakes up and is out of it. Dr said patients going through this tend to do better if someone familiar is with them.