I have washed his tail with dandruff shampoo and the 'dandruff' comes right back. I tried MTG, Listerine and baby oil as well, all to no avail. Today I washed the tail in diluted solution of betadine as suggested by my vet...(I've only washed him twice this spring) If this is a fungus, it is persistent stuff.
Also added 2 ounces of Rice Bran Oil to his feed a couple of weeks ago.
Am I going in the right direction if this is a fungus? Thanks!!!!