New 3DS XL: Dead pixels, spreading. Replace?

Hi! Thanks for reading. I recently noticed a small cluster of dead pixels on the top screen of my New 3DS XL. Over the past few days the cluster has grown. I'm worried it's going to get steadily worse until the screen becomes unusable. My questions are as follows:
1. Is there any way to salvage this screen before it dies?

2. If not, would a replacement screen from a standard XL work on a New XL, or do I have to find one from a New XL specifically? I couldn't find one on this website.