The pinna is the outermost edge of the auricular cartilage, the part of the ear where the cartilage curls and the spiral is in the shape of a question mark, in the upper front part of the auricle, where the cartilage of the pinna extends backward to the auricular orifice, an area called the foot of the pinna. The location of the foot of the ear wheel is also the most likely location for a preauricular fistula, which may be an infection of the preauricular fistula, resulting in a painful foot of the ear wheel with a localized heavenly fistula opening, surrounded by redness and swelling, or in severe cases, the formation of an abscess. Pain in the foot of the ear wheel is also associated with nerve pain in the ear, which can be treated orally with vitamin B1, vitamin B12 and glutamine tablets, which can nourish the nerve, and if the pain is severe, painkillers can be added for treatment. Wearing headphones for a long time, or receiving local trauma and squeezing can also cause pain. If the pain is heavy and not relieved in a short time, it is best to seek medical attention to determine the cause and treat the symptoms. Usually pay attention to rest, prevent cold and cold stimulating food, do not stay up late, form good habits, do not smoke, drink, and avoid wearing headphones for a long time.