there are reasons why an eye will reject it i dont know exactly why but when i got mine pierced they told me if a few things happened it would reject it i would try and google it ....... and no if its done right it will not leave a scar so if he trys again and it rejects it it will just be wasted money but i would go back to the place that done it and if they are good buisness people they should do it agian for free