Some dogs go into remission and some continue the cycle of nail loss and regrowth. With the meds and supplements, subsequent cycles are much less painful.
We are also altering her vaccination schedule for this. She will only get the absolute necessary vaccines, and she will never get more than one at a time. They will probably be at least a month or ideally, about 6 months apart. We do not believe it was vaccine related though, as she hasn't had any vaccines since last August and even then, she only got Lepto and Kennel Cough vaccine. She was due for her rabies shot in August and she just got it this week. The vet wanted to hold off a little but we live in the country with lots of critters, and I wasn't comfortable with her not having it. She has done fine since she had the shot though.