Is blister in the foot usual case for a sportman, or more specific here, a badminton player? What is the reason? Bad footwork or bad shoes? How about thick dead skin? The skin of my feet is thicker than a bg80 strings due to blisters! LOL! Do you guys have the same problem too? And my ankle always experience slight pain that last for like 2 days after play? Is it because lack of warm-ups before play? Would like some advice from all of the seniors here! Thanks!