"Why can't I get better" was Dr. Richard Horowitz's 1st book on Lyme's. I suggest that your friend reads that as a starting point, and then he needs to find a "Lyme's literate" physician to treat him using Horowitz's protocols. Most doctors are clueless about Lyme's.
https://www.amazon.com/Better-Solving-Mystery-Chronic-Disease/dp/1250019400https://www.amazon.com/Bitten-History-Disease-Biological-Weapons/dp/006289627XDr. Drew: Willie Burgdorfer clearly didn't create the spectrum of spirochete bacteria that result in Lyme's Disease, but he helped to weaponize them (& possibly enhance them). Ehrlichiosis, Babesia, and Anaplasmosis are common co-infections of Lyme's disease sufferers and all come from the same tick bite that infected them (and I had them all too). Isn't Syphilis a spirochete bacterium as well? I suspect death by Lymes would be similar.