sick sussex hen

[presley]

Her comb has been getting paler last few days, and today looks really pale with black spots and like its shrivled up. It is very hot here and she has been molting some but thought she was about finished. Doesn't seem to be any discharge from eyes. I put electrolytes in water. Should she be isolated from the rest of flock? What else should I do? Thanks

 

[presley]

she also has stopped laying, forgot to mention that.