Yes. I will provide another update in a week.
I guess the symptoms could return, but if we look at the facts, a coincidence here, is unlikely.
For instance, ever since the post nasal drip [PND] started, it remained at roughly the same level 24/7. I was pretty much clearing my throat every few minutes.
I then take a 5 day course of amoxicillin and on day 2 the bad breath starts to reduce. On day 4 the PND reduces dramatically.
6 days after starting the meds, the mucus has gone and the swallowing stopped.
Now, yes, there is always the possibility that this was all a massive coincidence, but there is an equally good chance that antibiotics may have a positive therapeutic effect on this condition.
I always fall back on the fact that I am the second person, in this forum, who has responded positively to amoxicillin.
If only one other person, responded well to this medication, I think we could be fairly certain that PND can be treated, at last.
An interesting idea would be to set up a poll on this forum, to see if people with PND have responded positively to antibiotics.

We could have 3 options:

Yes
No
Have not been treated with antibiotics

I wonder if the system administrator could set up such a poll?
If this is not possible, I could set up a Post Nasal Drip group on X. I could then set up the poll on there.
Or failing this, I would be happy to set up such a poll on one of my own website. And then add a link here for people to use.
This forum is great but I think it is about time we started analysing some of the data, people have been sharing over the years.
Anyway, if you think this is a good idea, let me know.