iphone screen issue

[jcr]

the screen on my partners iphone 8 has started to come away from the body on one side. its sticking out about 1mm across most of its length. is this something i can just take into a phone shop to get repaired? should i send it back to apple?
thanks.

 

[jcr]

thanks for the info.

 

[jcr]

took it to an apple shop for battery replacement. it was a swollen battery causing the problem. cost £49 for a battery replacement. phone good now.
thanks LIE.