These are generally produced by pressure from lying too long in one position. The best treatment is the employment of preventive measures, which consist in perfect cleanliness of the parts and daily

Tabbing with alcohol, a saturated solution of alum, or alum and tannin, and rubbing the parts with gycerine twice a day after washing. When the bed-sore is formed, its suppuration may be hastened, and the foul odor corrected, by sprinkling over the sore dry powdered charcoal. An excellent healing application consists of finely powdered iodoform, which should be sprinkled over the surface of the sore, lint saturated with carbolized oil, ten drops to the ounce, being afterward applied for protection. A remedy which has been very highly recommended is galvanic electricity, generated and applied by means of silver and zinc plates.

The whole sore should be covered with a thin silver plate, which may be made from a silver dollar by hammering it out thin. In the immediate vicinity, upon the sound tissues, should be placed a zinc plate of about the same size, a single thickness of flannel intervening between the zinc and the skin.

The cloth should be kept moistened with vinegar, by the action of which upon the zinc the electric current will be generated. Some observers claim to have seen large sores heal over in twenty-four to forty-eight hours under treatment by this method. By the use of an air cushion, Fig. 390, pressure may be taken off the affected part, and healing thus facilitated. In some cases it becomes necessary to partially suspend the patient by means of a swing.

Fig. 390. Air Cushion for Bed Sores.

Fig. 390. Air Cushion for Bed Sores.