That is an Oncologist.
Benign cancer
It stays the same
canned food dose not give Cancer but if it stays in the can to long after you open it you may get sick
"cancer" usually stays in the bottom until death, or if some cases, if there is a cure...which skin cancer can be treated, but not cured.
the nurse
It stays forever and may turn into cancer.
The benefit of cancer insurance is that if one is struck down by cancer they will be able to afford the treatment and care they need. The insurance covers hospital stays, treatments and surgery.
Baby orcas nurse for one year but stay with their mother for two years.
Go and see a qualified medical practitioner (a Doctor).
If cannabis is used in treatments for lung cancer patients, the second hand smoke should have little to no effect what-so-ever. So fight the war on the right side, inhale a cancer treatment not a cancer cause.
A mother whale stays with its young for at least a year.
That some thing is not right and that you should go and see a Doctor.