Doctoring
Doctoring is a type of work performed with the medicine skill. Doctoring includes treating injuries, treating diseases, performing surgical operations, and taking care of patients (entertaining and feeding).
Treating injuries and disease can be done with or without medicine, but you'll see significantly better results if you use any form of medicine. The three types of medicine are as follows: herbal medicine, medicine, and glitterworld medicine - from least potent to most.
However, surgery requires at least herbal medicine - but it's not advisable to use herbal medicine in any circumstance: it's simply not potent enough. Glitterworld medicine is exceptionally good for surgery though, and should be used for doing so whenever possible (and ideally nothing else, apart from truly life-threatening diseases).