Can my white spot on the back of my iPhone 7+ be repolished

[bigilz]

How can I fix it

 

[MooMooPrincess]

Generally no, sorry

 

[Spencerdl]

How can I fix it

Maybe put a case on it. They do make very slim form fitting cases. Peel cases comes to mind if you don't want any bulk.

 

[TripleOne]

I don't think you can