My boyfriend had essential tremors since he was in his early 20’s. It runs in his family. When he heard about this treatment (HIFU) he went to the neurologist who specialized in this procedure. He had the procedure done for his right hand 4 years ago. The results were amazing and he was thrilled Two years later, after it was approved that it would be covered by insurance, he had his left hand done. However, this time while the shakes were no longer there, he lost 80 percent of his ability to taste. He was told it would be temporary, but 2 years later, he still can’t taste. He heard this only happens to 15 percent of patients. He is going to go back to the doctor but we are pretty sure this effect is permanent. Having said this though, he no longer shakes which was so debilitating for him for so many years. Do your research and know the risks and make the decision if it’s right for you.