Open Question: Does everyone receiving chemo get an infection at some point? Help getting through cancer treatment…?

17, I and my mother has been diagnosed with inflammatory breast cancer, I can do / say to help? My mother on the right breast, and the tumor in the left chest cancer and inflammation in her armpit, she began chemotherapy tomorrow (December 23), and they will have a double mastectomy and radiation therapy. What is the chance of infection during chemotherapy convulsion, what is the number of people and the general prognosis of this cancer? ? ? If anyone can be shared, to conduct a thorough treatment of this type of cancer and would be very grateful to their own stories .. … is there anything I can do, or make her feel better, because it can be afraid of the voice, but I do not know what to say, who apart from 'I'm sorry, I love you' to thank so and so