Another turn for the worse

In the continuing saga of my dad's recuperation, things have taken another turn for the worse. The initial reaction to the antibiotics was treated with more medication, and this proved ineffective. While getting just a tad better than at his worst, my dad is still being adversely affected by something in the post-op cycle, and today, he deteriorated to the point where he had to be readmitted to the hospital.

I am very scared.