I had read that also about NAC, but didn’t mention it because that’s not your issue right now.
Along the same lines, apparently star anise tea is also helpful.
Star anise is high in shikimic acid, much like pine needle tea. Based on some of information out there, shikimic acid can act as a counter to the spike proteins from the jab. Still researching this though as I may end having to get the jab at some point, so want to be prepared to counter the effects as much as possible.