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Chemotherapy can treat non-cancerous tumors as well as cancerous ones. There are 50 different chemotherapy drugs and many times some are combined to help combat the illness. Different cancers use different chemotherapy drugs. It's all based on where the cancer started, where is it, and how the cancer formed. Although chemotherapy kills the cancerous cells, it also kills the good red and white blood cells, so many cancer patients need to get shots to help increase those counts. Chemotherapy is given in a series of sessions, and a series of sessions is a cycle. The goal of chemotherapy is to stop the cancer cells from reproducing and dividing. It's used in advanced cancers to rid the cancer from the patient's body, shrink it or control the tumor and extend the patient's life.
Radiation therapy on the other hand is less severe than chemotherapy. It uses x-rays to destroy the cancer cells in a specific spot. The rays are applied directly to the tumor instead of running through the blood vessels. Many patients have said it is less painful that chemotherapy.
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