MY New Hampshire Red hen is sick. She has clear nose runnies and is very thin. She is two years old, and should weigh between 5 and eight pounds yet she only weighs two and a half pounds... she eats plenty, very enthusiastically. She drinks plenty also. Her water has penicillin fir antibiotics, she has hadthaat for three days and has actually lost weight. A few weeks ago she had her face swollen up the size of a base ball and her eyes sank into her head but after one day of penicillin and triple antibiotic ointment in her eyes she was healthy again.... she stayed isolated for three or four days and then went back with the ladies. All of the chickens except for the three silkies have rattly breathing and clear mucus... she is seperated now and is being fed seperatly. Anybody know what this could be? Her stool is firm and looks normal also.