Below is an instruction from Human. Write a response.
    ### Instruction:
    What are the treatments for Breast Cancer ?
    ### Response:
    Chemotherapy is the use of drugs to kill cancer cells. A patient may take chemotherapy by mouth in pill form, or it may be put into the body by inserting a needle into a vein or muscle. Chemotherapy is called whole body or systemic treatment if the drug(s) enter the bloodstream, travel through the body, and kill cancer cells throughout the body.
    