Méreks could be an answer. If it’s wet neck then nutrición is where you need to look. Make sure feed is no older than 6 weeks from mill. Add balanced meals. I have one that wry would flare up every couple of days. I throw high quality bird see with sunflower seeds in it. Sunflower seeds have the selenium and e to help combate wry. Plus they go crazy for it so it’s fun to watch. Try giving nutridrentch to that bird and see if it helps. One eye dropper once daily.