We are using all of the above also and have been impressed with how well it is all working. We use amla for vit. C for everyday supplementation and will resort to sodium ascorbate when noses get really runny. We also use the Thorne MTHF folate. We have a liquid quercentin by Source Naturals and our methyl B12 is by Jarrow. I've also read that stinging nettles is very effective for respitory allergies, though I have no personal experience with it.