I used to have excessive erectile tissue swelling up causing narrowing of the vagina, it was painful and uncomfortable and it did interfere with smooth dilations. Having said that, it can be corrected in a 2nd revision surgery which is minor. (can even be fixed under local anesthesia)
In the meantime, try thinking of non-arousing thoughts when you are dilation because that tissue easily swells up.
If you had your surgery in Thailand, I wouldn't bother going back to the same surgeon.
I suggest you contact Dr. Kunaporn, he is happy to fix complications from other thai surgeons and he is reasonable costwise.
I have met a few surgeons over there and he seems like the most unrushed and ethical surgeon so far.
Hope you heal well.
Love