5. Cod Live Oil
Another natural remedy that is extremely good at boosting your immune system and helping with sinus infections is the fermented cod liver. Fermented cod liver oil has a couple of advantages that you won’t find in many other supplements. One of them is that it is simply packed with vitamin A and vitamin D, as well as omega-3 fatty acids. What makes this supplement unique is that the fermenting process ensures that the nutrients that are inside of the cod liver oil are intact.
There is actually a pretty extensive list of things that cod liver oil can help with including mood problems, hormonal problems, and treating autoimmune disorders. There is a lot of evidence out there that has to do with this supplement, and it is definitely effective when it comes to sinus infections.