I had a different species of mycobacterium at one point in my journey, it was not sensitive to ethambutol but it was sensitive to amikacin, so I used that as a neb for over a year. In my case, as I understand it, I have been colonized with micobacterium and it will never go away. I need treatment for it when I am severely immunocompromised from myeloma treatment. Currently my MM is in remission, so no treatment for either. If (when) MM comes back I’ll have to have treatment for both.