I had induction chemo, 3 one week stays in the hospital getting all three chemos by drip 24/7, each week followed by a 2 week recovery period. They included anti-nausea drugs in the drip so I never felt nauseous but did have mouth sores. They also kept me hydrated. Rinsing with a salt or salt and baking soda solution helped the mouth sores some but I was also given a liquid Xylocaine solution to rinse with. I had little appetite and subsisted on Ensure, mostly, but Boost HVC is better. There is also Scandishake which tastes more like a real vanilla milk shake.

During the two week recovery period I drank lots of water and Gatorade. I followed that up with 7 weeks of radiation with one 45 min chemo session per week. Over the course of the entire treatment I lost 20+ pounds. Pre-radiation I had a PEG food tube installed and used it exclusively after a week or two of radiation. I have since regained 5+ pounds. I did feel more and more exhausted as the treatment continued and spent most of my later recovery time sleeping.

Everyone will tell you how important hydration is and it is TRUE. One should drink about 64 oz a day and supplement the liquid diet with water/juice/Gatorade. I could not tolerate most juice with my mouth sores or any later with my radiation burnt throat.

Sounds like your H needs more ant-nausea drugs.