Take her out and put her with the flock, but stay close by to keep the others from attacking her
They are seeing her as a stranger, they only tend to remember up to around 3 days then forget who was part of the flock
If you have some wire mesh or something to allow her to be part of the flock and have a place to go for shelter... then she will be in close proximity to the flock but not with them, this way it allows them to get used to seeing her and in a week you should be able to remove the wire and allow her to roam amongst the flock and she should be ok
Its just a matter of getting them used to seeing her again and recognizing that she is part of the flock