You are right , any infection will settle in our body very easily.I am fairly certain that I have an infection in my bone in the upper where the periodontal sheath was infected for so many years. I also think it is affecting the sinus directly above that. I have got to get periodontal surgery, but I dread it with a passion. I think we are onto one of the areas that are aggravated by ME/CFS. Seems like anyplace an infection can settle in it will.
I'm terribly suffering recurrent infection after wisdom teeth extraction. Had 14 rounds of antibiotics in 9 months. Now planning on long term course. Doctors and dentists are clueless but I guess upper wisdom teeth extraction site got infected after dry socket dressing. It is extending to sinus too.
Worse is that tooth was asymptomatic but oral surgeon got greedy.Can't they spare someone as sick as us?