Book 7
4
Now it is common for fistulae to have their exit between ribs; when this is the case the rib must be cut across on either side at that spot, and the segment removed lest anything diseased be left within. Fistulae which have passed between the ribs often involve the transverse septum separating the viscera above from the intestine. This can be recognized by the position of the fistula and the severity of the pain, and because at times, air with frothy humour escapes from the fistula, especially when the patient has held his breath. In that case there is no opportunity for the medical art. But in the case of other fistulae near the ribs which are curable, greasy medicaments are objectionable but anything else which suits wounds may be used; the best, however, is lint put on dry, or after soaking in honey if anything has to be cleaned.