My peking looks like he has been pumped up help needed

I've never seen anyting like that!  I am no expert but you may find people can help if you give a little more background.  Is he eating, drinking and poohing normally?  You could feel under his wing and  then feel the other hen to see if he has a temperature.  How are his eyes - bright or dull or weepy?There are loads of good experienced people who can give you advice here.  Can you post a picture?  That might help with clues.  It may be worth identifying a good local chicken-friendly vet.