Trust me, they were on to something!
A 2 Gift Cleanse Power used by Dr. Egas Freeman, created by shady.
In a pinch, the skilled field surgeon may open a vein and bleed any toxins from a patient. This process is reminiscent of doctors of a previous age balancing humors, and is sometimes harmful to the patient.
Spend a Willpower and a minute treating your patient. You may cure any single disease or poison that you have diagnosed. The disease or poison must be mundane and curable with modern medicine.