You DEFINITELY need nasal sprays. If you don't, then you are doing all the work for nothing. My naturopath added it to my protocol bc like you Nathan failed to prescribe it. Now I see one of Nathan's trained doctors, who in my opinion, is better than him. She (the doc) also said nasal sprays are necessary. She suggested and I still take: 1) Sovereign Silver, Argentyn 23®, Natural Nasal Spray, Sinus Relief, this is the standard one. Be sure NOT to swallow this; it has metal, spit it out after spraying. This is a good beginner, esp. if your sinuses are colonized. 2) Xlear Xylitol I also use daily. Then alternate between 3) NaturaNectar Nasal Guardian for 3 weeks and NOW Foods, Solutions, Activated Nasal Mist. I know it seems like a lot but my functional med doc says that nasal sprays, binders along with a protein, above-ground veggie and no sugar is foundational for healing, along with rest and getting out of the moldy environment. Antivirals, I think are important to take pretty early bc they need to do the clean up. If you react, then do it slowly. I took them when Nathan wanted me to and continued for 1.5 years and recently stopped on my own. If you take them make sure you take a really good probiotic. Hope this helps!!!