There is a product called Carnation VHC. It can be ordered from a pharmacy or the company that is supplying her cans now. It has 560 calories per can and my husband tolerated it quite well. Her doctor may know about it and may be able to advise you. I'm sorry she is having difficulty. We had some problems in the beginning as well but as he got used to it, it got better.

cg to husband, 48 Stage 1V head and neck SCC. First surgery 9/07. Radiation and several rounds of chemo followed. Mets to chest and lungs. "Life isn't about waiting for the storm to pass, it's about learning to dance in the rain." Went home to God on February 22, 2009.