Sorry to hear your sister is having a rough time with her treatments. I wish I could help you by answering your questions but its not possible. Nobody can predict how she will react to more treatments. Make certain everything she is telling you that she is also relaying to her doctors.

All I can tell you is to make sure your sister is taking in at least 2500 calories and 48 oz of water every single day. That is what will help her to get thru this easier. If you can push her to take in 3000 or even more calories it cant hurt. Same goes with the water, some say a person needs alot more than the 48 oz daily while in treatment. This is very important when having chemo to help flush it out of her kidneys. Sometimes all a caregiver can do is to focus on the things that are in their control such as hydration and nutrition.

Best wishes with everything!