Well, I am only on intermittent abx but I know that quite a few people are taking those and LDN. It is quite safe. Also Copaxone is quite safe with them, but if there is any benefit in taking the lot, I don't know. Some people take copaxone and minocycline, but not for reasons of getting rid of an infection, so I guess you have to decide what you are treating MS as.
If you believe it to have an infective root, go all out to treat it as such. If not, take minocycline and copaxone and or LDN.
I had very aggressive SPMS, but now I haven't. I just took doxycycline, roxithromycin and metronidizole.
An Itinerary in Light and Shadow Completed Dr Charles Stratton / Dr David Wheldon abx regime for aggressive secondary progressive MS in June 2007, after four years. Still improving with no relapses since starting. Can't run but can paint all day.