Got back from the vet today where he did an examination and a skin scraping.
I have attached 2 photos, one before the scrape and one after (WARNING slightly bleeding).
The good news is - he did not see anything under the microscope. It doesn't look bacterial. The bad news is - it still seems a bit vague about why the adult quill loss...
Today i treated with another dose of revolution. Also later in the week, I was suggested to add OMEGA 3 and VIT C to diet into food/water (over the counter at drug store)...???didnt do much research on this diet change.