I'm an old geezer to and I don't believe I ever said the drops helped, in fact I never read where the drops or tablets helped anyone. If I wrote that the drops helped it was an error and should have written the drops never helped and that's my mistake then and glad you corrected that. If you can tell me the date I wrote that I will go back and correct it. I tried the drops and the tablets and got no benefit. As I just stated 3 hours ago it was only the fresh or frozen that helped about 50% of us. We have lots of smoothie recipes, most of us used about 1/2 a bunch daily with stems included and added fruit, yogurts, almond milk, collagen and so on in the blender. We listed tips to keep it fresh for about 5 days and also freezing tips. If you are being helped by the cilantro drops, keep it up. Perhaps your brand or concentration is superior. As you pointed out the professional really have no idea what the cause it and no idea what treatment put it into remission.
You are also right about there being limited information about GD, they state it is a rare form of eczema, but you can see from this site alone we have many suffering from GD. Facebook is said to have an active site and earthclinic's GD blog is where Kimass 1 read about it helping the first time and that's when she shared with us about cilantro around mid Feb 2019. That information was only about fresh cilantro. Also, you are right about even the causes being iffy. It seem likely since cilantro helps only about 50% of us, at least that's about the results from our Mayo site, we can assume it has different causes. Today more and more is written about heavy metals causing diseases like Parkinson's and Alzheimer's. All I know is that my torso skin feels normal. Even after I went into dormancy after using the cilantro it still took over 8 months for all the residual scabs to loosen up and fall off for good so don't be discouraged. So even free of active GD it takes time to heal. Good luck and hope you keep improving.