Update: My wife had a tele-health session with her PCP today and the doctor thinks she has pneumonia, so it's antibiotics and and a nebulizer. If Abby is not markedly better in 2 days we may be looking at a hospital stay or at least supplemental O2 at home.
Fighting this thing with Acetaminophen alone isn't getting it done. We're in our third week of this, and it's no fun at all I can tell you. I worry.