First I want to thank you for being there for your daughter, and supporting her through this nightmare. It is so important for your daughter to have the unconditional love and support. It will go a long way in her healing and recovery.
Okay - so you and the Dr.'s are saying she has chronic lyme and needs more treatment.
is she taking bio-identical progesterone? and is she on cortisol for her adrenals?
In my opinion, it wouldn't be a good idea to take too much time off of treatment - as any gains made could be lost..as the infection continues to grow.
An herbal protocol would be something she could start on - at very low doses.
One protocol is Buhner's:
buhnerhealinglyme.com/There are others - Cowden, Byron White, Jernigan's.
As far as detoxing goes, is she taking warm epsom salt baths? How about
dry brushing before the baths.
Drinking 8 glasses of water daily? - Some glasses with fresh lemon juice?
Has she tried Alka Seltzer gold?
Also, Activated charcoal as a binder to flush out the toxins that accumulate from the bacteria die-off.
The "New to Lyme" thread has more detoxing suggestions..you can look at.
I hope you don't take offense to what we are saying - we just want to help your daughter get well...