After nose reduction, black things stick out like this. At first, I wondered if they were blackheads? I left it on because I wanted to, but when I pulled it slightly with tweezers a while ago, it felt like stitches... If I go to the hospital and remove it, will things return to normal? ㅜ It's annoying because I don't know if the outer stitches were not removed or the inner sutures are sticking out.