Herbals will not do what normal the prescription stuff will do in anywhere near the same amount of time. If at all.
I was doing the Flat2fem. Do they work? I am not sure, you being on Spiro may help it along more. I was on them for a bit but I stopped before I started seeing a therapist. I was certainly happier on them and will probably end up discussing that with my therapist. They had an effect, I am just not sure how much.
Are they recommended or safe? There is no regulated information on dosages so some could potentially cause problems, so you are kind of running some risks with them. The FDA doesn't regulate any of it except to say it is not poisonous. If you do it, you are pretty much on your own.