Hi, I Am A Brain Tumor Patient. I Just Last

Hi, I am a brain tumor patient. I just last Tuesday finished 6 weeks of RT concurrently with Temador. The last few days I have a sloshing noise in my head. Right ear & head. Contacted my Radiologist today & he said it is not uncommon for some sterile fluid to collect I middle ear following radiotherapy. He also said the best course of action was to let it resolve itself, unless it gets worse & starts creating more problems. He said it shoul resolve in a few months. I don't know if anything can make it go away faster. But it is really annoying.
Any suggestions?