@marellen Your doctor probably put you on a 7 day/week regimen because of the cavity. I started with that treatment as well but was unable to tolerate it. With MAC you need to have a close relationship with your doctor. Talk to him or her! Your doctor may have to lower the dose of one or more of them. Some of us are on a 3 day (MWF) schedule. If you can tolerate two perhaps you could do an inhaled Arikayce which goes right to your lungs but is not without side effects. Talk to your doctor. I’m sorry you are experiencing those side effects. My guess is they are dose related. irene5