page 30 of 1327 of The Riverside Chaucer

The doctor is satirized because he isn’t actually doing any real healing, he’s a scam unlike good Arab doctors. He’s also in cahoots with the apothecary because he can just prescribe some drug concoction (cordial) and get a kickback of that sale from the apothecary. Just like today with how drug companies pay (influence) doctors to prescribe expensive drugs and pain killers. Things never change.