Sick rat recovery question

For those experienced with rats...I currently have 3 rats, one is recovering from illness and is seperated from the others.

My question: The one of the non sick rats (Chai) is VERY aggresive (another reason the sick one-Pink is seperated from her), if Pink recovers from her Myco completely would it be ok to introduce her back into the rat colony environment??

Has anyone done this succesfully, and of course I'd wait for Vet ok but I'd like to hear if it worked from a rat owner.
Thanks

I would make it a very gradual process. Over a month or so. Luckies4me will tell you more she is the rat expert :D

Good luck!
Ash