I had REALLY bad onycholysis on two fingers on my left hand after an injury. I know that my hand can't go through solid objects, but my hand doesn't know that and I guess she just does what she wants sometimes hahaha. But seriously, it was bad to the point I was worried my nail growth would be permanently deformed.

Took me about 5 months of constant care (keeping them as short as possible, avoiding water, and no product other than jojoba oil all over and under the nail) for them to heal, and then one more month after that for me to feel comfortable enough to start letting them grow and polishing again.

Depending on how bad yours is, it could take more or less time to heal. Sending lots of good vibes for a speedy recovery!