Castor Oil for Dogs and Cats: Benefits and Uses

My cat who has had teeth pulled a few years ago, recently started scratching the top of his head, his ear, under his chin and both side of his neck. Thinking it might be his teeth, I have an upcoming appoint with a vet to check out his teeth. Thinking it might be ears, I've been giving him Zymox (old vet script that still works) in his ears and his ears look better. I've been watching him closely, he's eating, urinating and pooping. Meanwhile, I've been recently learning about Castor Oil. (Ok for dogs and cats via Dr. Jones: https://www.youtube.com/watch?v=EzO41qmAsTM ) I slathered it on him, which he didn't like, but he loved the rubdown. Well, here we are a few days later and I've only seen him scratch once and the scratched areas are looking better. I was afraid to put the oil on him daily, as he was licking it off, but I decided to put some on again today. Also, fyi, although he was still eating before, he was sleeping most of the time and the second day after the first application, he was up, eating like a king and wanted to be on our laps on the couch. I got the organic cold pressed oil through W-M and I'm really liking this stuff. I will update as things progress.