septra/bactrim is a sulfur drug - so as long as you are not allergic to sulfur, yes, it is safe. It does fall into the category of drugs that can cause ototoxicity though (ex hearing loss, tinnitus) - but I already have a hearing impairment, and I am ok. Only certain individuals are susceptible.
I don't have any vibration issues, or any issue with regards to the brain. i was lucky that way - lyme hit other parts of my body, such as my bladder, my stomach and such. Yes, I did have severe nerve pain, but that's been gone for a few months.
I would say I am currently 95% better (took a setback because I got sick last week, otherwise before I got sick I was 98%)