@kmescherich, as Sue suggested, you'll find many helpful posts in this discussion:
- Starting MAC treatment with "big three" drugs: What to expect? https://connect.mayoclinic.org/discussion/starting-mac-drugs/

I moved your post to the existing discussion so you can connect with many.
As you prepare to start treatment, you may also find these related discussions useful:
- Just started big 3 for MAC: Questions about dosing and more https://connect.mayoclinic.org/discussion/just-started-the-big-3-for-my-mac/
- MAC Antibiotic Medication: What time schedule works best for you? https://connect.mayoclinic.org/discussion/medication/