I would double check with Newport before I gave up on herbs for Blasto.
Could be it just takes more than the recommended dose to be effective, or you haven't found the right herb, or herbal combination yet.
Two things are necessary to get well, you have to learn how to listen to your body and you have to figure out what works for your. This depends on your P450 profile. If you are not familiar with the activity of P450 enzymes, google it and read what wiki has to say about P450. P450 cells are kind of like switches that respond to certain enzymes. Everybody has a unique set of p450 cells. Your p450 profile determines which chemicals/enzymes/herbs your body will respond to. Hence an herb that was very effective for you, might have no effect on John Brown. Herbs are not snake oil, you simply have to find the ones that your body needs.
Forgive the crude explanation. I am not a medical doctor or research scientist.