I went through everything that I could think of. Deficiency, which it wasn't. Stress, which it wasn't. Etc. I never did learn why he focused on that one spot.
Like Jet, I know that Sophie is not deficient in nutrients, and I don't imagine that she's suffering any type of stress, or else you would have caught it. There are no new members of your family, for example.
The only thing that I would suggest not doing, is using Bitter Orange on it.
That's what I put on something that Zack wouldn't leave alone, and he ingested it by not caring that it is supposed to taste bad.
He was on Pepcid for 6 months after that, with bleeding ulcers.
The surprise to me was that I thought that something called Bitter Orange was using a bitter taste derived from oranges. It was derived from hot peppers.
Love All Life, Thank You For Posting! :)