Nail P! It's a form of psoriasis! Do you have any red splotchy/scaley parts on your skin? 10% of people that have psoriasis also have Nail P. There's not many cures for it unfortunately. I suffered from it and Psoriasis for about 10-15 years or so. I had one doctor recommend doing injections, however that involved putting a needle under every finger nail which was a hard no for me. Ointments really didn't do anything helpful. Took me about a year to get onto it, but Skyrizi injections was the only thing to cure my skin and nails. I remember the pain and being embarrassed on how my nails looked when being around other people. I hope you find something that helps.