hen w/ cold?

[CountryBoy72]

I have a hen with a runny nose (clear), breathes with her mouth open and has a sneeze.
I have been giving the girls a warm mash in the am, may have sniffled up water in mash.
Should I separate her from the others?

 

[cw]

bump as my roo has the same problem
but we went a head and seperated him he is the best roo we got,