Sadly I found her dead after some how getting into the duck pool during free ranging today.

She hadn't seemed both by the swelling really unless she had to roost. Otherwise she'd run around and forage with the rest of the flock no problem. She did develop a sneeze but that could have been because she prefered to sleep in a nesting box when she couldn't get comfortable on the roost so breathing in more dust from the straw and was currently starting her on vetrx to try and help that. The swelling had even seemed to have been going down so it was really hard to find her today that way especially as she was the last of the five I'd gotten. Thank you everyone for your concern and help with her up until today.