I would show it to a doctor. It could have a fungal infection underneath
which is perpetuating the split. After all as you surmise, what should
happen is that it will grow out if you are careful to cut it square each
time, but if there is something growing under it that will never happen. I
had this with a big toe nail and it was not until I got rid of the stuff
underneath that it grew out again. I',me surprised its a finger nail though
as they are in the air and readily exposable to various chemicals that fungi
won't like. Inside a shoe its more conducive to nasty things.
Brian

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"Chris Bacon" wrote in message
...
I sort of hesitate to put this here, but it's DIY-related (or work...) and
I'm hoping there's a DIY fix.

There's a vertical split in the top of the nail on my pointing finger. I
don't want it to catch on something and rip off, or get worse (it's only
4-5mm into the pink zone). I want to get ti to heal.

I have had it in sticking plaster for about 6 weeks, but the split
continues down as the nail grows. Bloody nuisance.

Any ideas/experience?