My mother ages 67 years was recently diagnosed with stage 2A breast cancer in the left breast after a lumpectomy.. there was also metastasis to 3 out of 6 lymph nodes studied. She has undergone a radical modified mastectomyincluidng removal of all the lymph nodes in the area. The doctors say she will have to go in for chemo and radiation. Is it preventive or curative? What are the options - tablet or intravenous? Will she regain her health after all this.