Last flush I topped off the GF/OO with about 1/4cup fresh lemon juice, and I also rubbed some Young LIving peppermint oil on my temples and under my nose. That may have had something to do with having less nausea this last time. I still had to force down the GF/OO, though. It seems like it gets harder every time. I bought some almond oil to try next time, but I had such a good flush with the OO, I'm afraid to mess with the protocol. It's a lot to go through if it doesn't work.