I am so sorry to hear of the cancer, hav4boys. It is very hard indeed on both the patient and the caregiver. I pray all goes well for your mom. I am sure we all are there for you in what way we can be.
My brother is half way through his chemo treatments and my sis and I are the helpers. It is very hard, but, hopefully all will go well for him. So emotionally draining, not to mention a million appointments all over town.