Blisters can be caused by constant rubbing/friction, by touching a harsh chemical or from extreme hot or cold temperatures.
Blisters on the feet usually come from a combination of moist feet and poorly fitting/tailored shoes. This causes friction whilst you walk which inflames the skin. The skin reacts by collecting fluid under its layers as a way to protect the area.
Germolene New Skin 13ml:
Germolene New Skin provides a waterproof and germproof barrier to protect minor skin damage such as cuts, grazes and blisters, so allowing natural healing to take place. More >>>