Answer:
I would say B
Explanation:
A) The blister will not swell you foot. Typically swelling happens when blood goes to an area to protect a joint and keep it from moving.
C) Blisters can take some time to heal so you should not spend a long amount of time with your foot up. If you do not cover your blister it will become worse from rubbing and the pain will come back.
D) Blisters are on the outside of your skin and do not have to do with the inside. Plus, this is not preventing more rubbing in the near future.
So there you go, the answer is B
