Years ago, a friend's mother had cancer, not sure what kind, but she too said there was an odour. A smell she will never forget. When my mother's friend got cancer, Mom said the smell was unbearable! When I got breast cancer, I don't remember any change in my scent, although, after chemo, I didn't get any underarm odour for 2 and a half years! Small blessings! I am very curious to know what it smells like. Can you describe? The thought of recurrence is always in the back of my mind, this just might be a weapon against this horrible disease.