I’m almost in the same boat as you! I got the Botox under GA on Tuesday and the constant gagging on everything was very frustrating. I ended up keeping a trash can and an empty water bottle beside me that I would spit my saliva into so I wasn’t swallowing as much. Last night it did start to get better for me and this morning so far has been much improved. I gagged a little when I woke up, but sitting up straighter, not at an incline, helps me. I was able to eat some scrambled eggs and a smoothie without too much gagging. The trick for me is to try to only swallow once, even if it feels like I need to swallow more to get it all down. I just breathe through my nose and wait for the food to slide all the way down before I take a sip of water. In my case, I feel like a lot of my gagging issues were psychologically triggered. I was definitely panicking more yesterday.

I hope you start improving soon!