What problems are your children experiencing that caused you to seek out an herbalist?
What licensing, education, degrees, etc does this person have?
Is this a naturopath who happens to be of Chinese descent who is an experienced herbalist, or someone who dispenses Chinese herbs exclusively?
And did your children receive a complete health assessment and examinations and a comprehensive care plan, or was some kind of tea sold to you, with the promise that it will cure everything? Teas and herbal drinks have their place. If your kids are consuming energy drinks and sodas all day, and the herbalist suggested that they drink a healthy tea instead, I could see where that might have merit.
But if your kids have medical issues and this person assured them that an herbal drink will get rid of their acne, constipation, anxiety, scoliosis and diabetes, well, that just isn't going to happen.
So why did you go, and whom did you see, and what were the extent of the recommendations? Were you pressured to buy a lot of products?