I grew up with a catfish pong in my backyard as a kid, literally. Got barbed many times learning, it stings for a little while. No where near two days, unless you get a super deep gash. I did hear an old wives tale that if you rub the tail of the catfish over the barbed area it takes the sting away, but who knows if that's legit.
Easiest way to handle any catfish is to grab them over the back, with the barb that's in the middle of their back cradled just above your hand.
Then your thumb will be on the one side of the catfish behind the barb, an on the opposite side you keep the barb between your two fingers.
The fish can flap around all it wants, but your in control. I've seen guys lip em too, but some of them have pretty strong jaw muscles.
Good luck, an let us know how you make out!