Stretched Ear - healed and hurting

Greetings,
I stretched my ears to a size 4 three months ago - so I’m sure they’re healed by now. I like the plugs that I have so I’m wearing them out before I stretch again. They are natural stone. But all of a sudden, my left ear is tender when I rotate the plug. Why? I took the plug out and it is very irritated and it almost looks like a blow out. But how? What’s causing this? I have been massaging it with jojoba oil and I even downsized to a size 6.
Anything helps!
Rhubarbeque