Recently Answered Questions on DECET

So I have these white patches on my oropharynx wall, i don't know why these happened, in 2019 i had acidity issue fr a mnth, after 1-2 mnth i had continuous cough fr a mnth, after that tinnitus also showed up after sometime. Recently my sputum culture has showed k pneumonia heavy growth. I had taken ceftum 500 twice a day for last 5 days and that course is complete. I have few questions now.. 1. Is this granular pharyngitis treatable? 2. I am habituated with my tinnitus now, but 1 thing i noticed pitch increases when i press my tmj/mastoid. 3. When i get hiccup also the tinnitus increases for a while(1-2 sec). 4. Can this tinnitus be caused because of this pharyngitis or anything?(brain mri was done all was normal). 5. I have post nasal drip mostly(also my ige level is 440). Right now m on a course of decet od for 21 days because of high esionophils. Please advice. And is this anything serious?