What is the reason that toes are red and itchy?

This is caused by frostbite. Many people do this in winter, and cold is the root of frostbite. There are many treatments, but it is difficult to cure, so the recurrence rate of chilblain is very high. It is often said that "there is frostbite every year, and there is frostbite every year." In fact, frostbite will be fine without treatment. It is caused by poor blood gas in the limbs due to cold. It is very uncomfortable when it itches, but it will get better as long as the weather gets warmer. It is very important to exercise more at ordinary times, so pay attention to cold and warmth. If you just indulge now, rub some hot alcohol and eat more high-calorie foods such as mutton and chocolate to keep out the cold. . . I hope you get well soon!