Which of the following is included in the treatment plan for trench foot and chillblains?

• A. Elevation, warming and bandaging; nifedipine; pentoxifylline
• B. Elevation, warming and bandaging
• C. Nifedipine (20 mg TID)
• D. Pentoxifylline (400 mg TID)

Answer: (A)

Treating trench foot and chillblains requires addressing both tissue injury from cold exposure and the underlying vasospasm that limits blood flow. Elevation helps reduce dependent edema and improves venous return, while warming restores blood flow to the affected areas after cold-induced vasoconstriction. Gentle warming and proper bandaging protect injured skin and support healing without causing further trauma. Adding vasodilator strategies targets the vascular component: nifedipine relaxes peripheral vessels to relieve vasospasm, and pentoxifylline improves microcirculation by decreasing blood viscosity and increasing red blood cell deformability, helping capillary flow in cold-damaged tissue. Combining these approaches covers both the structural care of the skin and the need to enhance blood flow, making the treatment plan more effective than either mechanical care or pharmacologic therapy alone.