Molly, everyone heals at their own pace. I did not have RAD or Chemo, but I lost 1/3 of my tongue, and the bottom of my mouth was rebuilt from the skin taken from my neck during the radical neck dissection. I was back to work within 8 weeks. Of course, everyone comments on how quickly I heal. Not sure why, must just be my impatience with things in life. I like your sister also had really big problems with the Ensure. Check out some health food stores, I finally found a supplement that I could handle. It however was made with water, so it wasn't quite as thick. Tell your sister many people are out here cheering for her. As Donna said, support and reasuring words from those around you are worth a million. Take care. Anne.