Our expert says:
Radiotherapy and/or chemotherapy is often not a cure for cancer, but is treatment that puts cancer into remission, improving quality of life by shrinking the tumour, and winning the patient more time. Cancers caught early can be cured in many cases (especially blood cancer, breast cancer, prostate cancer and colon cancer) but if it is already in a late stage the cancer treatment won't usually get rid of the cancer 100%. Billions of dollars are spent on cancer research yearly and I can assure you that the medications available on the market were tested in scientific clinical trials. The FDA (and other regulatory bodies) does not approve any medication that does not show proof statistically that it works better than existing medication on the market. There are many alternative medications available but none or very few have been tested scientifically and proven to be effective and safe. Of course chemotherapy and radiotherapy have negative side effects and the oncologist should discuss all the pro's and con's as well as the results expected, with a patient before initiating treatment. See http://www.cancer.gov/
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