I'm reading The Hobbit for the 10,000th time, because it constitutes a kind of literary comfort food. It makes a wonderful allegory for most any unpleasant adventure one could have, including the medical kind. Here's a bit of dialogue from the book that sounds to me exactly like the kind of advice I always get from doctors:
"Now scuttle off and come back quick if you can. If you can't, hoot twice like a barn-owl and once like a screech-owl, and we will do what we can."