Greetings
Yanafox,
It would be good if you could have taken the chicken to see a vet, as, they could have tested for the exact bacteria causing the infection. That is, if it is a bacteria. A viral infection can also be a possibility. But, I agree with
EggSighted4Life, "Seems like it could be a possible perfect storm of some things."
In my opinion, if we follow the history of symptoms, the bump was the first symptom noticed. It appears to be a puncture wound, and bacteria was introduced at that point. Pecking wounds on the comb is common in chickens. And usually heal up quickly. But, it seems that a
resistant strain of bacteria was probably introduced. This still should have healed with the Tylan. But, the hen's immune system was overburdened, with the heavy roundworm load.
Her high temperature will kill her, or if she survives, can cause brain damage. It's good that you gave the aspirin. Aspirin can cause intestinal bleeding, so, it needs to be followed with food. You may also have to put her in a tub of cool water, to break the fever. Her body is trying to kill the infection with the fever, but, it may kill her instead.
If she were my hen, and I couldn't take her to see a vet, I would do the following.
- Switch antibiotic to Baytril IM injection, once a day. Or, Doxycycline tablets, 50 mg. a day.
- Administer, 2 drops of Colloidal Silver, 20-30 ppm strength, in the mouth, once a day.
- Syringe feed the hen, with a Hemp Protein Powder meal replacement, 40 mL a day. Hopefully, you know how to do this. Or, even tube feed is good.
- Give a dose of full strength Electrolytes, once per day, and electrolytes in waterer too.
- Vitamin dose twice a day, for three days. Due to the worms and aspirin therapy, Iron is also needed. I prefer Pet-Tinic.
- Slather the bump/injury with Neosporin ointment (without pain reliever) , three times a day.
- Keep the hen in a hospital crate, 75-80 degrees.
- Keep the hen's vent clean.
As
EggSighted4Life, also said, it is not good to worm a sick chicken. It very well could push her over the edge. If you supplement with vitamins and make sure she is getting enough nourishment, she will have a better chance to recover. And this will compensate for the nutrients that the worms are taking. Then, as soon as she is recovered you can worm her.
If she starts eating on her own, offer her wet mash daily, and soft food diet. Foods like: cooked egg, diced cooked meats, cooked brown rice, diced fruit, cooked diced vegies, chopped greens. All in small amounts.
So, these are my thoughts on your hen's illness. I hope I have been helpful.
Other members will offer advice, please consider them too.
God Bless and peace to you.
