I'm sorry to hear about your loss. Cancer is indeed a terrible disease.
Unfortunately, you won't find the cure for cancer among mainstream medicine. I hope you don't mind my saying that the cure for cancer does exist, but not in the form of a pill. I've done quite a bit of research, and I'm still learning, but the cure for cancer is in our food, the right sort of food. If you ever get the chance, look for a movie called The Beautiful Truth. Part of the movie details the life of a German doctor who discovered the cure for cancer back in the 30's but his research was suppressed. The doctor's name was Max Gerson.
My wife lost a sister due to a surgery that went wrong. She went in to have her gall bladder removed, the doctors then discovered a tumor, and they attempted to remove it. I won't go into detail here, but she didn't make it.
We regret not knowing about this movie or the information we've learned since then.
It's my opinion that mainstream medicine is only out to get everyone's money. Just my opinion.
Just thought I'd mention it.