Hi Victor.
I think that it is too early to decide that RTX is not working.
I started to see improvements only AFTER 2 months and I could clearly see it only after 3 months. my wg doc told me it can start working after only 4 months as well.
In addition, my first round of rtx didnt stop severe inflamation I had in my sinus. when I went to the 2nd round of it, 6 months later, my sinus CT still show inflamation deep inside. my doc is hoping that the 2nd round will help. I did my 2nd round at 24 sep and 10 oct. I am still feeling very tired and aching but my sinus starting to feel better.
anyway, the best advice so far is to ask your doc about it.
good luck and update us.