Kiln wash stuck to glass

I'm new to fusing and this site. I did a search and see that my problem is not unique. There were suggestions to avoid kiln wash sticking to your glass. But, I didn't find anything on a solution to the "etched" glass, itself. I was able to remove the kiln wash, but, is there anything I can do with the glass now, to return it to a gloss?

Follow up

I found some suggestions to try. CLR prompted no change. Etching cream while sanding, and then refiring, did!I was able to resolve my problem and save the piece.

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