Hi everyone, I just joined & jumped straight to asking a question as I am kind of panicking about 1 of my little chooks...appreciate advice asap pls!! I have 2 Sussex, 1 bantam & 1 Frizzle, all about 16-17 weeks old. All but the Frizzle I bought from a rural produce store as approx. 8 wk old chicks. I highly doubt they were ever vaccinated. Frizzle came from another rural produce store/from a exotic chicken breeder. Possibly vaccinated as she is the only 1 who isn't sick. Problem/medical issue: The 3 Sussex/bantams started gaping first on a regular basis, about 2-3 weeks ago. I looked up what it meant and I read gapeworm so I wormed them with Avitrol as per directions on bottle which is 12 drops in 20 ml water. As obviously 20 ml isn't enf for 4 chooks (hot weather too) I repeated that measurement until sufficient supply was made up...I assume that wasn't overdosing?! I don't know how much any of them drank. I read some birds avoid drinking if wtr tastes off so just in case I syringed a small amnt down each of their throats. This was 3 days ago. No sign of worms til today-1 in poo, white, abt 2-3in long...gape or tapeworm? Some people online say to fast them for 24 hrs first (why?? as the but the bottle doesn't say that), the store clerk thought I should follow btl directions & I wntd to just get it done asap so I did per bottle instructions. I cnange bedding regularly & clean up poop daily. They have had 2 acres of land to freerange on til today, perhaps with so many bugs & worms they got infected? All chooks but sickest one (Henny Penny, will get to her symptoms shortly) have stopped gaping I think. Then they all (3) got yellow nasal discharge which blocked their nostrils and made them wheez, otherwise bright alert running around eating & drinking. Then Henny Penny's discharge turned clear yesterday but she is gargling sneezing, shaking her head wheezing...and this morning after 15 hrs with no food isn't eating. She is isolated as of last night, I am an idiot for not isolating her sooner. Antibiotics aren't available to buy from a vet or rural produce store here (Townsville N Qld Australia), the only option I found is to try one off ebay, at $100+. My vet said there isn't anything u can do. HP is one of my favorites, I will be very upset if she were to die. Please advise !!