I knocked my big toe nail on the metal steps coming out of the swimming pool last October.
It was broken right across the nail bed and also at one side.
Only just connected at the other side.
Being a woose I could not bare to mess with it and I knew it would eventually fall off (which eventually did in about November.
First problem to solve was to keep nail in place at home and in the pool.
I padded the toe nail area with lint and tied gauze around it.
I then covered with tubular bandage.
From Amazon I purchased waterproof pool/ beach foot shoes ( bit like soft ballet shoes),
to use when the swim pool was open and in the shower.
When the nail eventually fell off,
I only used a small piece of lint and tubular bandage to protect the soft area when wearing outdoor shoes.
Thankfully my toenail has now started to grow back and no longer needs padding.