There are very few doctors in Slothjemia, but to be honest, there are very few doctors anywhere. Geldenreich has a very prestigious university that graduates a small number of physicians every year, and there is an equally prominent medical school in Kugahloo that does the same. But in between these two places there is a great lack of proper medical know-how.
However, where science falters, sorcery and the supernatural fill the void. In the more remote areas of the kingdom witchdoctors and shamans fight disease and set broken bones. Their remedies are effective, but often brutally painful, causing those afflicted to ponder whether the cure is worse than the illness. In more civilized settings, priests and clerics do most of the healing, and especially powerful members of the clergy can even resurrect the dead. The newly revived might not be as fully functional as they were prior to their attempt at shuffling off this mortal coil, but some of them bounce back eventually.
The primary difference between spellcraft and plain-old medicine is one of cost. The handful of doctors scattered around Slothjemia might charge a hefty fee for their services, but a mage would charge five to ten times as much for the same treatment. Magic has the benefit of often being more effective, and faster, than medicine but the cost can make such benefits difficult to attain. Many people in the realm have a knack for basic healing skills, including but not limited to such diverse professionals as squires, bards, rangers, paladins, and the odd druid. Druids are very uncommon in Slothjemia, because everyone considers them odd. Doesn’t matter how many trees you hug there, sunshine, most folks are going to think you’re a bit nutty.