Did they get strep or RSV testing?
Those are my symptoms as well.
I figure I have a bacterial infection so since I have some Doxy I am taking it.
It hurts so bad to swallow I don’t even want to drink anything
She ended up having three stents put in... she is still coughing but doing much better.
The others were tested I believe for strep but didn't have it.
I would strongly suggest you be tested for Strep and or RSV as in my niece's case it can cause other problems.
Praying you feel better soon.
Try a real antibiotic