so the last year I discoverd that if I take antibiotics before my perio cleaning at the dentist (3x/yr) I do not get into nearly as bad of a flare afterwards......it had never occured to me to take them before the dentist until I learned may have pvo w/heart. so I am thinking perhaps its preventing as much bacteria from being released into bloodstream or something so i dont feel as lousy for days afterwards? I used to attribute the flare all to my neck issues so its interesting to learn it may be immune related. and I think I actually feel better than normal now after the dentist I think because of the antibiotic-----does anyone scientifically informed know if this deduction could be true and what the mechanism is? makes me wonder if should do a trial of antibiotics longer term, never have for the cfs.