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Yesterday I dropped a small amount of coconut oil on my phone, my phone was shattered however and the oil has gone behind the screen and run, the place where the oil was spilt is blue and the running oil has turned white even when it’s on low brightness. The phone still works fine but if I got my screen replaced would the oil disappear?

Amy Nicholson , Find below link #1 will show how to remove the 6S display assy. for replacement and link #2 are available screen assemblies (life time warranty)which can be purchased at iFixit store. Good luck. I hope this helped you out, if so let me know by pressing the helpful button. iPhone 6s LCD and Digitizer Replacement https://www.ifixit.com/Store/iPhone/iPho

You shouldn’t be worried like Stephen said the coconut is only trapped in one of the LCD layers and replacing the LCD would fix the problem.

Would rise work to take out the oil from the phone