Good morning and welcome to Mayo Connect and our MAC & Bronchiectasis support group.
If you are new to the diagnosis, or to our site, you may like to read a couple of our basic discussions that can be helpful.
First, at to whether there is another way to fight MAC except antibiotics the answer is "Yes, maybe."
Here is the best easily followed document I know for understanding NTM:
https://www.ntminfo.org/wp-content/uploads/2019/06/NTMSupplementalGuide.pdf
You might find this discussion helpful:
https://connect.mayoclinic.org/discussion/macntm-is-different-for-everyone-treatment-might-be-different-too/
And this discussion contains many helpful link to understanding our disease and infection:
https://connect.mayoclinic.org/discussion/resources-for-the-abcs-on-bronchiectasis-and-mac-ntm/
After you have looked at some of these (but before your brain is totally full 🫤) please come back and ask any questions you may have.

We are all on this journey together...

I usually get them online originally from NYC later from FL as NYC online store does not supply it any more due to compliance issue. Though thymosin alpha 1 boosts energy and reduces inflammation, it can't replace medication. I still recommend medical treatment as soon as possible. Hope this helps!