Studies Suggest NAC Can Help Improve Respiratory Symptoms

After having a terrible experience with Covid, I was unable to shake a cough that had been lingering for months. NAC & Natto kinase were recommended to me. I'm not sure how long I took them before my cough stopped, but it wasn't that long. I'm able to go through the night now without coughing, so I sleep better.

What are the Health Benefits of NAC (N-Acetyl Cysteine)?