What we can do is eat only good food. I stopped working full time job and planning to doing only free lancer work for 2 hrs from next month. Reason is full time job stress may lead to blood pressure and ultimately bp is one reason for cancer to come back.

Be careful with scans in very rare case like my case ct scan with contrast i had reaction and was in icu and hospital for seven days. Bp came down and body was shivering for 3 hours after ct scan