I am having family history of cancer from my nani's mother to nani & then my mother. My nani was first diagnosed by uterus cancer which was treated well by radiation but 2 years later she was diagnosed lung & brain cancer at the age of 78. My mother diagnosed with breast cancer which was treated by surgery only as it was at beginning. Her age is 59. My nani's mother was died by lung cancer. Last month my nani also die by cancer. My mama is also having lung cancer but recovering well. I am also worried by this disease. Is there any preventive vaccine for cancer or any homeopathy medicine so that cancer never return in my family.