My 64yr old dad is pretty active, he os on his feet a lot. A couple of days ago he was complaining of toe pain, when my mom looked at his toes they were puffy, red, and flacky. They felt like they were fever. Then the next morning his big toe was blue and gray in color. He has a lot of broken blood vesels going up his calf,at lease thas what it looks like. Any information wwould be greatly appreciated. Thank you