• Nails form at the root near the last toe bone
• It takes around 9 months for a nail to grow from the root to full length and at about 3 months before the nail becomes visible
• The damage in SLO occurs during formation at the root
• Nail loosening or shedding happens after the nail becomes visible
• After treatment for SLO is started, it will take about 3 months before normal nail starts to appear and as long as 9 months before a relatively normal nail covers the nail bed
• A treatment regimen needs to be continued for some months to allow healing and then a very gradual reduction in one component at a time is important to avoid exacerbation of the disease.

Dog 1 - views of loosening nail and nail bed beneath