has gone away now but it was on my left foot right on the fallen arch. I bravely used a sterilized needle to make two small holes in the blister one at the top to let the air out and the other at the bottom to let the fluid out.

Usually it is advisable to let the blister heal on its own but if you are an athlete like me, you do not have this luxury and the blister has to be dealt with directly and bravely as I described above.

Just call me Tigasin. That's what I'm talking about