Dear New Guinea Girl,
I agree with Kevin & Ron. If that doctor actually said that, s(he) is REALLY in the dark about MM. There is nothing merciful about MM. The proper treatment may help the pain, but you need to get her to a doctor who treats MM and knows what to do for her. If we were in Minnesota, the Mayo Clinic would be our first stop. Do whatever it takes to get her to a GOOD MM doctor. There are many meds out there that may be able to help your Mom, but first you have to have a doctor who can figure out what is best for her individual case. Find that doctor and get her to him/her as soon as possible. Good luck.
Jan