You may not need all of these options, but if they help to protect you, why not?
Oh and of course, please don't forget to check with your doctor first.
Nails - Tea Tree Oil
This can easily be found at your local health food store. Rub this into your nails and nail beds 2 times a day to help prevent fungus. Since chemotherapy drugs target rapidly-growing cells, your hair, mouth, and nail cells are likely to bear some damage. With this damage, the rates of infection and fungus increase, which is where the Tea Tree Oil comes into play. If you have never interacted with Tea Tree Oil before, spot test this out first to make sure your body doesn't have any negative reactions to it.