To care for trench foot, gradually warm and elevate the feet. Put on a sterile dressing, taking care not to break the blisters. Get medical attention, because trench foot can cause severe disability. Repeated, prolonged exposure to cold weather can cause chilblains. They are red, swollen areas that feel hot, tender and itchy.
Chilblains can occur on the ears, fingers, and toes and are chronic.
This means they can reoccur when there is another prolonged exposure to cold weather. If chilblains occur, cover the affected area and get to a physician. Hypothermia is the general cooling of the entire body. The normal temperature for a human is 98.6 degrees Fahrenheit. When body temperature drops very much below this, serious problems can arise.