Chipped bone in foot, burning when weight applied, itches as well?

These feelings that you're experiencing are because you're trying to be too active on it. I understand that you have 3 kids to take care of, but you need to take care of your foot. If the chip is where I think it is, the reason why it burns and itches a lot is because the place where you "chipped it" there's a big tendon attached to it and the more you're on it, the more you're pulling the chip away and not allowing it to heal. You have to stay off of it enough so the area can scar and heal in, then at that time you may be transferred to a walking boot which will help with some of your activites. Until then, if you try to push the issue, it's gonna take a longer time than original to heal up.