Sorry you're having such a tough time....I understand!!
You can also try to boost their immune systems by providing a good probiotic. This "may" give them a bit more strength, naturally, to get over what they have. Plain, low-fat yogurt is VERY good to give. I also purchased an excellent probioitc blend made especially for chickens through First State Vet. I believe it is probably better than yogurt, but I'm not vet, so I don't know for sure. BUt, it's worth a try!
If your bird is getting over fowl pox, which is a virus, she as a lowered immune system which can cause many different problems. Fungal infections are possible with a lowered immune system. There are contaminants EVERYWHERE no matter what you do. Mulch, peanuts, wet litter, moldy food, wet nesting material, unwashed veggies/fruits, corn just to name a few. Fungal infections as well as viruses can show their ugliness in the form of respiratory problems sometimes. Treating with respiratory drugs will not help, sometimes making it worse. Instead of trying all the respiratory drugs available, maybe look into an anti-fungal. Unfortunately, I think they are only available from a vet.
Other than that, all I can say is treat her for a virus. Clean (with bleach) her food and water bowl EVERYDAY. Give fresh water and fresh food EVERYDAY. You can even change the water twice a day. Many germs/organisms get deposited into the water and food bowl all day as the bird eats and drink, this is a very quick and popular way to spread an illness. Look in to a good daily vitamin, aviacharge 2000 is wonderful and easy to purchase over the internet. Feed only good quality feed, no corn (unless given sparingly as a treat once in a while). Up the protien using scrambled eggs if needed. Wishing you a full recovery.
my sweet zowie she is about 7months she is doing real poor this evening ..
gonna call peter in the am ..,hope she hangs on and comes outta this ..gonna try for friday to drive up to the vets about 2 hours away with 1 of them to a vet .gonna also call dep of agr in the am too,maybe they can help
Poultry houses use iodine in the water for some diseases, I do not know if it would help if it is a virus. What I would to do is treat it just like a human virus and that means sanitation and clean water more than twice a day. Isolate the sick birds so they do not pass it back and forth. You should put ACV in the water to kill the virus when they drink. Give them vitamins and if you are already up them. I would give each bird polyvisol and vitamin E. The ACV should help a lot, I put it in my drinking water if I feel a bug coming on. Or I load up on Orange juice but I do not think the sugar in OJ would be good for the birds. If you can't keep the birds warm maybe give them some scratch before putting them up for the night to raise their body temperature.