Hi, my mom got a breast cancer, stage 3b, undergoing chemotherapy now. 3rd session got delayed coz of low platelets count. what needs to be done?

Couple of things are: to be done:- 1: Wait till the numbers come up, specially the WCC; 2: Ensure she avoids anyone and everyone who has any sort of infection (whether a kid or an adult) however minor, as any such infection would be really bad for her; 3: Everyone should wear a mask when they go and see her or help her in any way; 4: Keep her Oncologist informed if she gets a fever, bleeding from anywhere, etc.