Hi HawThorne, and welcome to the Forums!
Burning tongue is not one of the typical symptoms of acoustic neuromas. However, it was the very first symptom I had. My tongue would burn if I was drinking cold water or eating any kind of food, cold or warm. It was the symptom that made me seek out my physcian who ordered an MRI, and that's when we discovered I had an acoustic neuroma. Other symptoms like tinnitus, loss of balance, and loss of hearing came after my burning tongue.
Unfortunately, I cannot tell you anything that caused my burning tongue to subside other than time. I tried a number of medicines and natural treatments, but none of them reduced the symptom of my burning tongue. Some doctors thought I was crazy because they said that a burning tongue is not a true symptom of acoustic neuromas. It was not until I joined this forum that I found out I was not alone in experiencing a burning tongue in connection with an acoustic neuroma.
What I have learned is that everyone's acoustic neuroma journey is different, and we do not all experience all the same symptoms. But I am convinced that having a burning tongue is a legitimate symptom for a few of us. I lost about 25 pounds because I did not want to eat or drink anything as food or drink made my tongue burn worse. But, in time, it went away, and I cannot connect its disappearance with any vitamin, pill, or anything else specific I tried. I am truly sorry that I can't provide any more help for you -- because, for me, it was awful to experience.
Please let me know if you find something that works!
Don