When they are throwing a trantum and you're trying to ignore them, do they follow you and pull on your leg, arm, etc? Do you still just ignore them?

I try to ignore Reid when he is throwing a fit, but he will follow me around and yank on me. If I am still ignorning him he will grab me HARD and pinch. It hurts! I remove his hand and tell him "No. Not nice." which just results in more of the same. I don't know what to do!