you may have a fungal infection in throat - if you read my posts i had systemic infection of parasites - repiratory system invovled and did all the therapies you are doing - inhalation therapy three times weekly with sometimes antiparasitic med sometimes peroxide etc.I also used pharma meds - I also had fungal and bacterial infections in the area so overall a lot of treatments were overlapped and hard hitting to help. I am still shocked by how bad my situation was- it was a real struggle emotionally every moment daily for my time of treatment - more then a year really- but i totally got better. I felt like my body was not mine during that time very scared good luck