My father in law is suffering from lung cancer and it's spread in brain. Doctors have done radiation therapy. Now they are about to do chemotherapy or targeted therapy. But I have heard that radiotherapy and chemotherapy leads to damaging of healthy cells too which leads to death. Please help me out.

Dr. Premitha ROncologist15yrs exp

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Yes it's true that radiotherapy and chemotherapy do damage normal cells, but normal cells have ability to repair themselves faster, hence do not die. Higher techniques like IMRT, RAPIDARC TOMOTHERAPY, VMAT, which are available in many centres, decrease the radiation to the normal cells and plenty of supportive medicines help you to overcome the toxicities of chemotherapy.  

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