Don’t try to shove it down their throat. A lot of people mistake drenching for that. It’s not that, it’s syringe feeding. Put it in the corner back quadrant of their mouth, and slowly but surely release and let them swallow as you go.
This is SO helpful, thank you! Will he act funny after a beer drench? As in... drunk? Will I need to get him french fries? Took his temp again today, 100.8—a little better