The cause of frostbite is directly related to the cold. Patients develop frostbite on exposed skin areas, such as fingers, toes, and the tip of the nose and ears, which are common locations, and it is not very common for frostbite to occur on the lips. However, if frostbite occurs on the lips, it will first appear as a purple-red edematous plaque, and if pressed, the patient will have a distinct swelling and itching sensation. And if it continues to worsen, there may also be localized blisters as well as the appearance of rupture. However, patients should be aware that if they are not sure if they have frostbite, it is best to visit a dermatologist at a regular hospital. There are many patients who suffer from frostbite during the winter months due to a low intake of vegetables.