Love them or hate them, feet cause an awful lot of bother, especially if you lead an active life. Even with the best fitting shoes, you can still find you sometimes end up with a blister, particularly if your feet and socks have been wet or you’ve gone further than you usually would. What’s the best way to treat blisters? Should you pop blisters? Should you cover them up? Let’s consider what blisters actually are so we can decide what best to do with them.