I''ve read threads on here where some were saying stopping the antiviral meds helped to lesson the fullness in the ear. I've had MM for over 20 years. Low sodium, low sugar, no caffeine, very little alcohol, and taking a water pill, after a couple years, and for 10-12 years seemed to help keep me from vertigo and extreme fullness. Over the past year and half the fullness, pressure, brain fog, headaches, sometimes ear aches has gotten worse. At this time, it never goes away. Once in a while I have a day or a few hours of a day where It is a little more tolerable and I feel a "little" relief. ENT started me on Betahistine several months ago which I have to purchase from Canada. It doesn't really seem to be helping, but I'm afraid to stop for fear the tinnitus I'm now experiencing in other ear might be MM, and it "might" be keeping me from having full on spinning vertigo. ENT sent me to UC Davis in Sacramento CA to a doc that specializes in Otolaryngology (ENT/Ears, Nose, Throat), Otology/Neurotology, Otolaryngology ... I completed all the testing, VNG - CT Scan - MRI - hearing test. I spoke to him about the possibility of shunt surgery and a little about MAV and he said I could see one of their docs to see if MAV is a possibility. But, when I told him my fullness and pressure and feeling off balance is constant and a real problem for me having any type of life, he said I could consider the surgery. He doesn't do the shunt part because he feels it poses more risk and about 75% of the docs that are doing this surgery now feel they are getting the same results without the added risks for possible facial nerve damage or brain leakage and infection. He did explain to me that his 70 to 80% success with this surgery is based on vertigo. He doesn't have stats for the other MM symptoms relief, such as fullness and pressure. He said he can not guarantee they would be relieved, but, that the surgery could do that. Anyway, after 2 45 min to hour long visits discussing all this, I scheduled the surgery for June 1. After reading 4 or 5 posts on this forum of people who had bad experiences with the surgery, I'm pretty scared to go through with it. Going through surgery and having it not work is one thing. Having it make me worse is really scary. Sorry this is so long.... What peaked my interest was a couple people mentioning they think the antivirals made their fullness worse. So, I'm asking if there is more information on this? Or, are there people on here that had the sac surgery that good results to balance the negative posts??