hi, Broke Tib and Fib and dislocated ankle. the plate is on the Fibula

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i am 6 weeks post op for an ankle fracture with 1 pin 2 plates and few screws. the cast is now of and ive been told i should weight bear as much as possible.
My question is, can i ice my ankle, and if so can i put my foot in a bucket of ice water. 30 seconds in 1 minute out or should i just use an ice pack.