Chemotherapy is one of cancer treatment that used to destroy the tumor cells by using chemotherapeutic drugs. A doctor who has done his specialization in treating cancer with the help of medication, called a medical oncologist. As chemo is the word that always gives the meaning of surgery as well as radiation therapy remove. As if the doctors have prescribed a patient auto undergo chemotherapy, we have to understand that treatment decision can be done in 3 main achievements in cancer therapy. They are cure, control, palliation. As this treatment contains several practise of drugs in different ways to kill more cancer cells. In some cases this chemo is used only for the treatment as per the patient need. But sometimes radiation therapy is mainly used with the chemotherapy.