A surgeon for hire
The doctor in not only a surgeon, but the boss of a group called the “roaming healers”. They are students of Dalby and can repair mild to moderate cuts. They can deal with some local poisons, and some infection. But when you need their help and you are infectious, they are the first to report you. Many opt to pay exhorbant prices for magical healing. For those who can’t afford it, they can attempt to staunch the wound themselves, which usually fails miserably. Many insects in the desert can smell blood from miles and sometimes swarms of insects come looking for a wound.