Y’all I need help. My 3 year old son chews his nails to nothing and then continues to chew the tops of his fingers. His finger tips look like he drug them on pavement, they’re raw and sometimes bleed! He moved to this after chewing his wrists to the point of being bruised. He does have a sensory processing disorder and the dr has said that may be his coping mechanism but he is hurting himself and it’s so hard to watch. Any advice on what to do that I haven’t already tried?? We have tried distracting, reminding him when he does it, giving him something else to chew on, reading books, playing toys..nothing seems to work!