risehigh, Is her treatment cycle r-chop or another one? Each regimen has some different drug combos with different side effects, so knowing the treatment name will help me tell you what might help. If her pain is from the Neulasta shot (given to increase white blood cells) so the treatments can stay on schedule, then the following may help the pain. Many people have found that taking Clariton (yeah the allergy stuff) for 2-4 days or as needed after the shot helps a lot. NSAIDS like ibuprofin can also help. For really severe pain ibuprofin plus percodan, or another strong pain killer may be needed. Ask her oncologist. Anything like acetyminifin is useless. Make sure to tell oncologist everything you need or want to try so they can track all drug combos.
Nausea is like pain, tell her to not be a hero and take the anti-nausea medication they prescribe early on when she feels the need. The longer she waits the harder it will be to control. If she has burning problems from acid, Prilosec works well and can be taken as needed or until a few weeks after she is done with chemo with no problems.
Not much can be done about fatigue, but if she can do some walking, even assisted, it will help a lot. Any exercise and movement is helpful. Cheerfulness and positive faith (yeah I know tougher done than said) actually helps with the fatigue. Projects and things to occupy the mind also help. Crosswords, maybe or a craft. Those kinds of things.
Watermelon juice can help with the metallic mouth taste. Hopefully, she is drinking lots of water and fluids---can't stress this enough as flushing the system protects the kidneys, bladder and liver (all the bodies filtering system) from greater harm.
If you will let me know a specific day and time to be in here, I will give you my phone # and e-mail. That way I can delete it within 15 minutes and it is not left for the world to access. Lots I could tell you. Best Wishes, Citrati