Pardon?

So I went to England in March for visa and passport business and I felt cold there. It was cold and I was there for about two weeks.

Towards the end of the trip I got a sore throat: painful but it didn't seem to spread.  Or so I thought.

When I got back home my left ear became blocked and I lost a lot of hearing power in it. I got some antibiotics and took them for a week. Still infected, still deaf.

I saw a doctor who gave me more antibiotics and anti histamines for a week. Still infected, still deaf.

I went to the hospital where the doctor gave me antibiotics and pseudo ephedrine ... for two weeks. Still deaf, still infected.

I came to Brunei and my research told me that all of their doctors are highly trained in Europe,  Australia ... I went to a clinic and was given antibiotics and anti fungal drops. For three days I noticed nothing but then ... ta daa ... big improvement. As I write this,  my hearing is almost back to normal and in two days I can stop the treatment.

My question is: what kind of infection did I get and why?

Happy to be cured.

DW