Hi, my two and half yr old son cut his finger about a week ago. The cut on his finger has healed but you can still see it. Thinking that he doesn't like seeing the cut we have put a plaster over the healed wound. He now refuses to open his hand. He clenches that hand into a fist and refuses to use it or to open his hand, although he now opens his hand for it to be washed or to have another plaster on his finger. I'm wondering if he's just being stubbon, or if he's been so traumatised he's somehow scared to use the hand? Anyone had any experience with this type of behaviour?