Antibiotics for Salpingitis

[Strategic Chicken]

Hello. My hen has been ill for a week and a half. I suspect it's salpigitis and possibly a little egg yolk peritonitis. She is lethargic, droopy, but still willing to eat and drink, albeit at a lesser rate. Her abdomen is large and squishy like a water balloon, and I have seen what seems to be lash material in her poop. Her comb is a little purple in tint, and her crop seems normal. In the beginning, before I had determined what I thought was wrong with her, I added vitamin/probiotic mix to the flock's water and made some calcium cakes for her. I have also been giving her Epsom salt baths. By now, she is quarantined in a different part of the yard with her own water, in which I have added tylosin powder as an antibiotic and a small amount of limestone reduced to powder integrated into her feed. On hand I have sulfamexothazole-trimethoprim and meloxicam for human consumption in pill form, and I was wondering if it would be safe and helpful to give that to her, being that this will not be of a veterinarian's accord. If it is acceptable, how would I administer it to her, and if you know, in what dosage?

Thank you for all of your help!

 

[Sally PB]

I'm tagging people who know more than I do.
@Eggcessive
@Wyorp Rock
@azygous

 

[Strategic Chicken]

I'm tagging people who know more than I do.
@Eggcessive
@Wyorp Rock
@azygous

Thank you for your thoughtfulness

 

[Eggcessive]

Sulfa drugs could be used, and I have seen where some vets have prescribed them for reproductive disorders, since they treat E.coli. Many use amoxicillin or enrofloxacin as well. Meloxicam is also used frequently for inflammation and pain. Dosage for sulfatrim is 100 mg per every 2.2 pounds given orally twice daily according to this link:
https://poultrydvm.com/drugs/sulfamethoxazole-trimethoprim