What your doctor prescribed sound correct for protozoal infection. Antibiotics are only effective against bacteria. You mentioned morgellons, based on the description of what it is, doesn't sound like Antibiotics would be effective for that, it's something to do with synthetic fibers not bacteria. Nitazoxanide is broad spectrum anti viral. anti bacterial, anti parasitic.

I'd go with doctor's guidence - if it doesn't solve the issue, ask for further tests and exploration of identifying the parasite(s).

Here is site focused on Lyme, Morgellons and co-infections (including Antibiotic treatments)... Area of medicine in which not many have experience... might be helpful: http://www.morgellons-research.org/morgellons/morgellons-lyme-treatments.htm

I have taken most of the Antibiotics made. Helpful for a certain amount of time, then usually stops. I believe its a morphological fungi or the like. Meaning it can change appearance, shape, size location in body. Makes it nearly undetectable. This is all my "irrational thinking" though. Ha. Anyways, the list included Penicillin, Ciprofloxacin,Keflex, Rochephin,...you wanna ask specifics otherwise, please feel free. I really have brain fog and remembering the TONS of drugs ive tried is impossible. I also had a series of steroids meant to "reboot" my entire immune system. Also a fail. I had candida on bloodwork, so i took high doses of fluconazole for a year before realizing i had become immune. So within a few months of switching to ketoconazole instead, bloodwork balanced back to normal! Still many odd, depressing, unrealistic symptoms left untreated here, but progress none the less.

GOD BLESS! XO
Freeme43