2./kloc-infants under 0/year old can try non-surgical therapy, that is, make special corrective devices according to the shape of the upper part of the child's auricle. Then it is fixed on the upper part of the auricle to keep it in a pulling state, so that the tense skin there gradually relaxes and reveals the shape of the auricle.
3./kloc-surgery is required after 0/year old. Adults who require correction can generally have surgery, children need general anesthesia surgery, and bilateral patients can have one-time surgery.