Nope. Holes are not permanent. After awhile, they'll smooth over and you won't even feel anything. In some people there might be a sligh depression but that's about it.
The stiching is to close up the hole and help the healing process faster. Depending on what stiching he used, it should either dissolve with time or you need to go back to get them remove. Either way, they're there to close up the wound so you won't get any major bleeding.