Conch Piercing Scars 👎🏾

Ol

Hey! So recently I discovered I have a hefty hypertonic scar on the back of my ear from my piercing. I figure it is due to the metal because I have problems with that in the past. I was wondering if it would be an issue to put in a smaller gauge sterling sliver stud (such as one for an earlobe) for the time being as the scar fade away? Would the piercing hole become closed or change? (I’ve had the piercing since the middle of October, 2018.)