What works for me is taking probiotics L. acidolphilus and saccharomyces boulardii. I also consume kefir, drink plenty of water, take extra vitamin D, consume bone broth, and take some elderberry extract. Boosting my gut flora seems to help the immune system in a big way.

Also I use Dr NeilMed nasal rinse in a squeeze bottle which has better pressure and flow than a neti pot.

What works for me is taking probiotics L. acidolphilus and saccharomyces boulardii. I also consume kefir, drink plenty of water, take extra vitamin D, consume bone broth, and take some elderberry extract. Boosting my gut flora seems to help the immune system in a big way.