Third one also finished now

Mama has done her third chemotherapy on 25/05/08. So far everything has gone smooth. Until now she had not showed substantial side effects. We all feel very happy for her. On the other hand, we fell a bit worried as well. Does it mean it's not that effective? Kindly share with me your experiences.
Mama felt nauseate yesterday (28/05/08). The person, who stayed next to her ward, passed away the night before. She was affected and couldn't sleep well since. Yesterday afternoon, she returned home and managed to sleep well. She has now recovered a bit today. 妈妈，你要快快好起来哟！加油！加油！