My grandmother is suffering with lymphoma cancer , she went through all the treatments (chemo and radiotherapy) not long after she finished her treatment her heart rate was extremely high so she was hospitalised for 5 days. We recently found out the cancer has come back but due to her hearts condition the doctors are unable to cure the cancer , only being able to possibly control it through chemo tablets that just slow down the process. My mother is now crying everyday and is blaming herself . I have no clue how to comfort her