Hi sorry to hear your situation
I would try any herbal suppert you could
Being a chiropractor I would suggest some expert advice from a well trained Chiropractor as well as any medical support. But try to get onto some one from this forum that is more knowledgable I feel that My experiance in the herbal area is much less then a lot of folks avalible in this forum.
If you need any advise from a spinal aspect please feel free to email me directly and I will see what help I can give You

Best wishes to you and your son
Tom

In addition to the cleansing, this is what I would do.
1. Take heaping spoonfuls of superfood (there are several brands besides schulze, I make my own from ingredients at the health food store/herbalist and a coffee grinder)

2. Directly on the area do hot/cold hydrotherapy 15 min, 3 times a day.

3. Directly on the area use fomentations of the Dr. Christopher BF&C tea (the combo that you mentioned) and also take the tea internally. Make sure the bowels are cleansed and flowing and there is no existing liver condition before taking large amounts of the tea internally.

4. Look to nourish the nervous system. All the above will help here, but use a nerve formula too like either Christopher's or Schulze's. I would also use the calc tea by Christopher to help the body absorb and use the minerals being taken in.
He needs to start the above ASAP!!
Remember to keep things like broths, herbal teas and veggie juices flowing!

best to you and them
thessa