Pseudocyst of auricle is a kind of aseptic serous exudation in auricle cartilage, which makes the reactive exudation between tissues accumulate and makes the auricle swell locally, often without obvious reasons and symptoms are not obvious. In some cases, there is only local burning or ear swelling. In the past, the effusion in the cyst was pumped out with a syringe and then frozen locally, which was easy to recur. At present, the disease is treated by radio frequency, and the effect is ideal. The principle of radio frequency therapy is to use low-frequency electromagnetic waves to act on human tissues, produce endogenous thermal effects, coagulate tissue proteins at a low temperature, block affected blood vessels through thrombosis, and shrink, necrosis and fall off tissues, thus achieving the purpose of healing. Because radio frequency therapy is minimally invasive and quick to recover, you can go home after ten minutes' rest. When you go home, you should pay attention to prevent wound infection, avoid sewage flowing into the wound when you wash your hair and take a bath, go back to the hospital every day to change the medicine, and recover in a week or so. Secondly, observe whether the wound is bleeding, whether the dressing is stained with novel blood, and avoid lying to the affected ear when sleeping. Generally, the radiofrequency scab falls off in a week or so, and the auricle pseudocyst gradually recovers. At this time, ear digging should be prohibited to avoid bleeding and wound infection.