I am ever so relieved that you caught it in time while it was still treatable and that you got veterinary help quickly. If there is ever a case for an emergency, then fly strike is it!
Fly strike unfortunately kills in a most unpleasant way if it goes unnoticed for too long or if is not addressed by a vet at an early stage. All it takes is a blow fly and a mucky bum end coming together at the wrong time, whether that is a hutch or the lawn.
It is still important that to you clean and disinfect everything in the hutch before she goes out.
Fly strike unfortunately kills in a most unpleasant way if it goes unnoticed for too long or if is not addressed by a vet at an early stage. All it takes is a blow fly and a mucky bum end coming together at the wrong time, whether that is a hutch or the lawn.

It is still important that to you clean and disinfect everything in the hutch before she goes out.