J is senlf-harming a lot at the moment. It doesn't seem to be linked with anything particularly stressful as school is going OK, but it has 2 forms: 1) to get my attention, when he will follow me and say 'look, I'm biting myself and 2) when he is out-of-control and it's not for show, iyswim.
Getting conflicting advice from 2 different professionals who are both expert in autism and in J, as they know him well. One is saying ignore and the other is saying distract and intervene.
What has worked best for you?