K.Well I’m new around here and even though I don’t know what Cortef is maybe I can help :)
You could ask the doctor if it is ok to smash the pill. Then you could put it in chocolate milk or something.
If you can’t do that, it might be easier to swallow if it is swallowed with something, like applesauce or yogurt. So that he isn’t thinking so much about the pill.
Good luck! Hope I’ve helped!