First ditch Oral meds, ball pythons metabolism is very slow and dont digest oral meds well.

What were the first set of shots and what was the second set. Baytril or Fortaz should of been issued for the first set. Always get injections and not oral.

While giving the meds you want to keep her nice and warm with a 82 cool side 92 warm side to help kick the immune system into overdrive.

As for feeding pictures would be great to determine the weight loss. But more than likely not eating due to stress of the meds.

How are you offering food and what type of prey.