What is the method of foot grinding out blisters?

Foot grinding out blisters, if it is relatively small blisters, can not be treated, small blisters are self-absorption. But if it is relatively large blisters, you need to use iodophor disinfection, disinfection after the need for a syringe to remove the liquid inside. When infection occurs, but also need to apply anti-inflammatory ointment in the local.