Recently..ok just now, I dropped my phone on my Delta airlines flight while waiting for maintenance to finish and my delay to be over. I drop my phone a lot. This phone is a tank. This time thou, I pick it up and just above the earphone, on the black 'plastic' edge JUST before the glass starts..is now a white "chip" I will take a pic later to post...but since its on the face...can't use a sharpie it will rub on my cheek..black fingernail polish? Is there a specific thing I can use to resolve this horrible white speck on my phones surface?