I have a yellow spot on the display after a fall, how can I get it off?

I dropped my Huawei Mate 10 lite and I have a crack in the glass. I noticed now that I have a yellow spot in the crack. The yellow spot becomes more intense with heat and when the phone is cold, you do not see it. The stain can be seen only on white backgrounds. I wanted to ask if I could get rid of the stain somehow.

New display

Since the layers of the display have separated and this is adhesive which is now visible in heat, you will not get away, and that will be more and more.

I thought so synonymous, but the repair would cost 145 euro