Mark, it's not gotten any better. Before my glans were always moist and there was a distinct odour. I do not have this anymore and I don't understand why. I may have to set an appt with my GP.
My diet has not changed at all.
I am not prescribed any medication and I am not experiencing dry skin. I don't understand why this is happening.
It sounds like a visit to your GP is a great idea. The internet is a great sounding board for this sort of stuff, but the professionals are definitely the people to go to when you're out of ideas.
Good luck.