I hope she is better soon. Someone here at work had the same situation going on...I don't know how she dealt with it, but she's much better now.
As to the scientific proof of traditional Chinese herbal formulas working...
it is very unfortunate that most "scientific studies" of which drugs are effective for what is conducted by drug industry or others who have the money and have the reason to take the time and spend the money, i.e., to promote a LOT more money coming in as a result of publishing "certain" findings they manage to procure from their cleverly calculated studies.
It's become my own opinion that these days very much of the "science" has been tainted by greed and disregard for the consumer or patient, depending on whether we're talking about safe foods or safe/effective drugs.
One thing that the traditional Chinese herbs have in their favor is a 5,000 + year history of anecdotal evidence--whereas allopathic medicine has less than 200 years...and is now the 3rd leading cause of death in the United States, according to T. Colin Campbell, among others.
So, if I knew that the person or organization formulating the Chinese herbs was properly taught the principles, I would assume most of that to be at least as safe and effective as anything that comes in a bottle, with or without a prescription...and maybe even BETTER.
The bottom line, though, when eating any food or using any drug or herb, is to listen to your body...and if it says GO, then do it, if it says NO, then drop it.