I really need advice a.s.a.p. (There's not a vet in my area for chickens). I found posts and replies to another frantic BYC member (SeaChick) on 7/7/2009... which have convinced me our big white hen "Sunny" (prob. 10 lbs), has Egg Yolk Peritonitis! She's going down hill fast... her comb and wattles and getting darker each day. Our (only) hen, Sunny (Maybe a Cornish Cross - we rescued her at 4 wks old Jan. 2011), has been sick for a few days, and 48 hrs. ago we moved her inside to see if we could make her more comfortable and noticed her symptoms more closely. (She normally free ranges and goes in at night). She sleeps in a cage of wirecloth so her poop goes thru... and we clean it daily. She also eats good quality food and forages in the yard for crickets, worms, etc. She has ALL the symptoms I read about... All poops are runny yellow-white (almost the whole excretion is yellow... w/ little bits of green pea-size poops... 3 DAYS NOW. I wanted to upload a photo of her poop, but I tried 2 or 3 times without success yesterday. poor appetite, comb & wattles are turning dark, and she doesn't want to get up much. Her comb/wattles were HOT this morning. I tried giving her some blueberry yogurt, but she refused it. Our local grocer does not have plain yogurt with cultures. I'm concerned about her getting dehydrated. Today, she won't drink at all by herself! I've been using a medicine dropper, which is difficult. She's not eating her usual food... only eat scrambled eggs since she's been ill. My husband did put a little water in the eggs a little while ago and she ate them all. The posts mentioned treating with penicillin... I have some Penicillin K (500 mg tabs) recently prescribed for me? I just wondered if I crushed it up 1/2 tab and sprinkled it in her food? (the closest farm supply is 40 mi. away) If my penicillin is out of the question... (I understand if you think not) smile I just called the farm supply - they only have Injectible Pen G for cows/horses - which has - 300,000 units and 139 mg of Procaine Hydrochloride - 3% Potas. Phosphate). I am afraid to inject her... but the lady at farm supply said I could give it to her in her food/water also. Can I use this and dilute it? If so, how much and with what? Her butt is messy but I haven't given her a bath... can I use a little dish detergent or shower gel (shampoo)? In summer we only gave her cool water baths without soap. I love your website, but I've not wanted to post much... I'm a little shy about asking for help! And NOW... I REALLY NEED IT !!! If you can offer some help, I'd GREATLY appreciate it. We're so new to this... we've already lost our other 2 hens this year. They were such sweet pets! My husband (retired) cried when both of them died! Sunny is his little buddy... and he is heartsick right now. We don't want to loose her too!