Got one more dose of Paxlovid to take tonight. It definitely did a lot of good. I could feel it starting to work late on the first day, and on the second day it was like I'd never even been sick. Did I say this already? Anyhoo, I've been fine except that I've been post-nasal-dripping like crazy, so my throat still gets tickled and I cough more than I'd like.
I also figured out that that kind of a cough is a complete waste of bodily energy. It's only triggered by the drip, and as such, it has no function. Coughing is only good when there's congestion to break up and clear out. So this is utterly wasted dry hacking that has no bearing whatever on the thing that's causing it. I'm trying to keep it to a minimum so I don't just get into a coughing fit cycle for no reason.
Anyhoo (again), other than that and a couple of sneezes per day, I feel fine, normal, and like I never had the Covid cold five days ago.