My little girl fell against the edge of a cupboard at a nursery causing a large hematoma about 1cm on her forehead with a shallow vertical cut in from the edge. The cut was not stitched or glued due to the delay getting treatment (3hrs-it-had-fully-clotted). 5 days later, the scab has fallen away leaving at this stage a visible gap in the surface around 1mm wide.
There is still significant bruising and some swelling. What would be the best way to mitigate any scaring? The attached picture was taken 4 days after the accident. Any advice/reassurance would be greatly appreciated.