My 27-year-old friend has just been diagnosed with breast cancer and the doctor has advised her to undergo chemotherapy. I have heard about the treatment but I don’t know what it actually entails. Could you tell me what the treatment involves and what the side effects are? We are very sorry to hear about your friend but chemotherapy though a bit cumbersome is one of the leading ways to fight cancer. Chemotherapy is a cancer treatment that uses drugs (anticancer drugs) to destroy cancer cells stops them from spreading and slows their growth is called chemotherapy. Most of them are