When I'm sick, I kind of become "immune" to drugs, for some reason. I can't explain it. Oxy, that I'd definitely feel, but I don't casually use opioids. I do take kratom, but I can't feel it if I'm sick, or on poor sleep. It's fickle with kratom. Can't feel benzos while sick or Gabapentin. It's like the sickness just absorbs the effects of the drugs, except for THC.
So, I chose cannabis. It is basically my favorite drug anyway. Only problem is, whenever I'm sick and smoke too much weed or vape too much rosin, I get waaaaaay more stuffed up. It's like each night I'd be like "alright, time to suffer!" as I coughed so hard I nearly puked on my floor. That was me with bronchitis in November/December, not to mention I'd be able to breathe through my nose and then lose the ability completely.
Then I got another small cold but because I also had a bad sinus infection, the small cold ended up really bad (nasal, didn't hit the chest). I'd finally be able to taste and smell again, ready to eat and taste it all, then I'd do some bong hits and whatnot and bam, goodbye to that. Enjoy kind of but not really tasting your food with your devious munchies, and I mean devious.