Third time peirecing.. is it sore?

If they pierce through the scar tissue it may hurt slightly more because the scar tissue creates a more bumpy surface to pierce through, but it really depends on how long your holes have been closed up. But even if you have closed them up 5 times, it may not hurt too badly because once the ears are pierced enough in the same place, the nerve endings will create a tolerance. It could go either way, it depends on your body type. Either way, it shouldn't hurt too badly if you have an appropriate pain tolerance. If it hurts too badly, just keep cleaning them and use hypoallergenic metal for your ears, they may just be sensative to the metal going into them. Best of luck xx