Once that cycle begins, Egg Yolk Peritonitis, Internal Laying, etc, etc, it is chronic. Antibiotics won't fix it permanently, I'm sorry to say. Been there, done that many times. They may remove some of the fluid folks call ascites, and draining will make her more comfortable by relieving the pull on her organs of all that extra fluid, but it won't remove the solidified masses of infection mixed with cooked yolk that can be in the oviducts as well as the abdomen itself.
Have lost many hatchery hens to it, four of them being Wyandottes, some RIRs, Barred Rocks as well as one Buff Orpington and a couple of others, but 99% of them were hatchery hens. It usually begins to show up just past the second birthday in a flock, the most common age being 2-3 years old.
These threads may be helpful to you.