You've had an extensive work up. So here's the deal.
Wear the boot if it helps.
The only pain medicine you can take is Motrin.
Do the best you can with the band.
Not the answer you want but it's the right one.
Dr.Gibson
Don't know of any specific anti-virals for Chicken Pox. It is a Herpes virus so there are some repression antivirals. Will they help? If started in the first day or two of the rash---maybe. Will it hurt? Well your out the fifty bucks but it won't do you any damage.
If you've got the Pox, you don't need the vaccine.
Dr.Gibson
Lipoma's are benign.
If you have good insurance and it really bugs you or is unsightly you can hire a surgeon to cut it out.
It's not the cause of your back pain and do all the cruches you can.
Dr. Gibson