Check NIH. They have a current study for Sjogrens patients but invited me to participate as a bone marrow transplantee since the symptoms are similar. I had a single acupuncture treatment there last year and it helped both taste buds and dry mouth! They also taught me acupressure that I can do myself. At the time, I was still receiving chemo so they decided they didn't want to do more until I'd been out of chemo treatments for at least 6 months. By then, I had improved to the extent that I didn't need more treatments.