Well, I don't have a lot of experience with being allergic to soy, but common sense tells me that if a liver cleanse can help with hay fever, it certainly wouldn't hurt to use it for other allergies. An allergy is an allergy! I plan on doing a Liver Flush September 21-22. There will be a full moon that weekend and I have never done a flush during a full moon. I completed 8 flushes 2-3 weeks apart, but have not done a flush in several months now. So, I am pumped about this flush!