I’m pretty sure that I healed with my foot in an unnatural position (outside tiles up slightly) causing the bone to heal in a shortened position. They don’t do anything to your fibula in most cases as it bears very little weight, it’s just allowed to heal on its own.
This is the only thing that stopped my scars itching after surgery. Cut open a vitamin e pill and rub it into the area. You can put something over it to keep it on there.