Radiation therapy involves the accurate delivery of high energy particles or waves in large doses to the cancerous cells to stop them multiplying by causing irreversible damage to them. The radiation breaks a strand within the DNA molecule inside cancerous cells to prevent growth. This will have an effect on healthy surrounding cells but these seem to fully recover from the effects of radiation therapy. Chemotherapy is different in that the whole body is exposed to agents that fight cancers whereas radiation therapy can be performed on a more local area of the body.
After radiation therapy, a patient must undergo fairly extensive follow-up care. This will include regular visits to the Doctor to check the day-to-day progress of the patient as well as managing any problems that arise.



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