Crepe bandage is of no help if you are walking over it. Its not gonna prevent displacement of your fracture
. If you were planning to walk immediately, a plaster cast would have been the ideal choice. But what's your concern now? Do you have pain/ swelling. If yes, continue crepe bandage and leg elevation over a pillow at night time. If you are asymptomatic and the Xray shows an undisplaced fracture, you need not do anything except for avoidance of sports/ running for 3 more weeks.