Blister on the bottom of my foot from walking barefoot on hot ground?

It's summer here in New Zealand and today I walked to the shops with my friend in bare feet. It was a very hot day and my feet got burnt and now there is a big blister about 1cm below my 2nd toe on the bottom of my foot. It is very painful to walk on. Can anyone give me some tips on how to make this not hurt... show more It's summer here in New Zealand and today I walked to the shops with my friend in bare feet. It was a very hot day and my feet got burnt and now there is a big blister about 1cm below my 2nd toe on the bottom of my foot. It is very painful to walk on. Can anyone give me some tips on how to make this not hurt anymore and to make it go away? Thanks.

P.S Not walking is not an option as I have school.
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