Help needed again with Honey

Well it is ten past one in the morning & the problems have started again, i took Honey back to see her usual vet last monday & she was pleased when the bandage come off, her toe was healing lovely & also her abscess has started to drain, so an other appointment was made for thursday to have the bandage taken off & checked over.
I was just getting ready to go to bed & checked her bandage & saw blood on it, i had to wake my son up to help me to get the bandage of to see what she had done to herself, well it made me ill has she has 2 little holes on the side of her foot where she has bite though the bandage, we cleaned her up & put some of the gel (from the vet) on the holes & bandaged it up again she has had pain killer this morning & i have give her half to what she normally has just now.
My son told me to put some thing on the bandage that would taste nasty to her but i said no has it might harm her, but do you know if there is any thing we could put on it to make it taste bad so she would not bite at it or would it make her start to bite at her other legs!!!!!
Oh god i only wish i had worked a lot hard at school all them years ago & become a vet then this wouldn't be a problem I would know what to do.

Oh no...I hope someone will be able to help with Honey. I am sorry

How about getting the vet to put a collar on her?