My dog Lola has also had SLO. Treatment depends on the severity of the nail loss. For my dog (she has had many other kinds of immune disorders) we had to have one nail removed. We did not do other things besides upping the wild salmon oil. The other nails involved were not so much affected and stayed on but were broken or lifting. She went through three rounds of losing that nail. The one on the other foot, which is the symetrical one, is always short and broken, even today when it has been years since she actually had SLO. Of all the immune disorders I am familiar with, SLO may be the one which has the most variables concerning the severity, how the dog reacts, how the dog recovers, and the treatment required. There is also a yahoo group called SLOdogs which was very helpful to me.