Revision/Correction Otoplasty to improve ear symmetry - can I flatten the protruding area? (Photo)

The upper helix/scapha of my left ear is larger and protrudes more than the right, and I have a small Darwin’s tubercle. Since I had otoplasty many years ago (with possible scapha weakening near the antihelix), I’d like to know what technique, could flatten the protruding area (upper helix/scapha) so that it bends and lies flat to my head to match my right ear. I am looking at the non invasive (Merck) stitch method but there are only doctors in Germany.