Chemotherapy is a kind of cancer treatment that uses drug to destroy cancer cells. Chemotherapy works by slowing down the growth of cancer cells which grow and divide quickly. But it can also harm healthy cells that divide too quickly. Chemotherapy process can cure cancer, control cancer and ease cancer symptoms. Antimicrobial chemotherapy is the clinical application of antimicrobial agents to treat infectious disease. It is a highly valued medical science that has shaped modern humanity in a phenomenal fashion. Chemotherapy is the use of chemicals against invading organisms. It is used both for the treatment of cancer and infection. Antimicrobial chemotherapy thus acts by interfering with cell wall synthesis, plasma membrane integrity, nucleic acid synthesis, ribosomal function and folate synthesis.