Our 7 year old adopted dog was scratching a lot and chewing the end of his docked tail. Since at home I am called the Iodine lady I started giving him 1 drop of Lugol'sIodine in his water daily, the biting of his tail stopped and the hair at the end even grew 1".
We took him to the vet so we would have a base bloodtest after 3 months and I asked for the thyroid test too. The test just was above the minimum, I am back to 1 drop a day since I had slowed down to 3 drops a week.
Striveon since I had forgotten about reading earthclinic and you reminded me in a former post, I am now addng also a little bit of apple cider vinegar to his water for eventual fleas and I hope ticks, which we have in our woods.