I can confirm that it can totally go away. I was incredibly itchy and sore. I treated myself twice for thrush originally, thinking I had thrush. When that didn't work, I thought I had an infection and went to the doctor for an exam.
I had either a watery gushy discharge like urine - OR the opposite, occasionally this thick gloopy glue-like discharge - apparently the cervix tries to moisturise itself but can't get it right and it goes in both directions sometimes.
I was very red down there. I slathered myself in YES water based lube and some bees wax moisturiser (which lasted longer so I preferred it) and I also had an applicator which I used to insert both vaginally too.
The doctor gave me Vagifem and I also got Ovestin for external use (which I think was the most effective topical product I tried)...
And then I got onto systemic HRT as well, for various other symptoms I had. Once my systemic HRT got up to a reasonable level, I found i was hardly needing to use and of these other products and now I don't use anything topical/local at all and I'm just fine on systemic HRT. Which is good because it was a full-on production multiple times a day to apply so many topical products.
I am now symptom free and don't think about the vag stuff at all

or use anything locally. So - YES - you can completely recover from this.