Doxycycline is also used for MG (mycoplasma gallisepticum.) Tiamulin, the other ingredient is the same as Denagard, which I mentioned above as a possible treatment as well. Tiamulin has a bad taste, so some people sweeten the water with additives to make it more tasty. That product should be...
Here is a link for examples of chicken slings for periods throughout the day, alternated with letting it lie down to sleep:
https://www.backyardchickens.com/threads/versions-of-chick-chairs-please.1166308/
I would leave it open and continue to clean it. Was the chick walking normally up to now? Is the chick with same age chicks? Is there anything sharp (wire or a feeder, etc) in the brooder? Could the chick have fallen from something? Make sure that it can reach food and water, and that no others...
Initially, I would clean with chlorhexidene (Hibiclens) and half water from a first aid aisle or pharmacy. Mix it in a spray bottle for your convenience and maybe warm it in a bowl of warm water. You could also dab it on with a clean cloth or gauze pad. After a day or two, you could then just...
Welcome to BYC, and sorry about the poult’s accident. Unfortunately, I think the foot may be necrotic (dead,) and it may lose the foot eventually. It can take a month or more for it to auto amputate. I would do a daily warm soak in Epsom salts or Betadine water for 15 minutes, just in case...
I had a similar experience with a 3 year old hen once. She was vaccinated as well. She suddenly lost balance, but her legs remained strong. She spent 5 weeks in a nest box moving around where I provided food and water plus vitamins and minerals within reach. I scooped droppings and kept her pine...
Since the sick chick was with the hatchery chicks for 4 days, they are already exposed, if there is MG. The stress of the move could have caused symptoms. I would place them back together and watch for any other signs of illness. Use the Tylosin again if one shows symptoms. It is only given for...
Conjunctivitis (pink eye) and the bubbles seen in the eye can be a sign of MG/CRD, a chronic respiratory disease in poultry. It is spread by a carrier and sometimes in a hatching egg. Your other chickens are probably exposed and only a couple of chickens may show symptoms. I would apply either...
Some of the feather loss may be from cannibalism and feather picking, but some could be from molting. If she is not molting, it may take until her next yearly molt for feathers to grow back. Are your chickens overcrowded? I would use a balanced chicken feed, such as Purina, Nutrina, or Kalmbach...
There looks to be an egg membrane in the picture. She may be experiencing a reproductive disorder. Could you try giving some human calcium citrate with vitamin d3 300-600mg daily for a few days?
It looks like a valgus leg bone deformity. If that is what it is, there is no treatment that works. I would try some B2 riboflavin vitamins in case of a riboflavin deficiency. Are you already using some vitamin E and B complex to treat the wry neck? B complex has riboflavin.
Can you post a picture of the bumble foot? Soaking the feet in warm Epsom salts water, or a disinfectant such as chlorhexidene or Betadine may help to soften the scab, so that any solid pus may be squeezed out. Here is a good article about bumble foot...
The cut could be the local of an injury, and I would check it for an opening or drainage. Watch for the green bruising in the next day or two. Her foot pad looks to have bumble foot. That can be treated various ways, including warm soaks to the feet in Epsom salts daily. That can soften the...