The cause of paronychia is improper nail trimming or squeezing with shoes.
The correct way to trim nails is straight scissors, not circular scissors.
In the early stage of paronychia, it is necessary to pull out the nails in the meat and let the nails be pulled out from the meat. Pull-up stickers can be attached to the nail surface to generate upward pulling force, so that the nail can be pulled out of the meat and grow above the front edge of the toe, so that the nail will not grow into the meat.
Paronychia is getting more and more serious, so you can only use a lesbian patch.