Urgent Cyst?

[SamanthaT]

My 45 yr old Amazon was biting his shoulder for almost 1 years and a small scab like developed l. We took him the vet and he said he didn't see any growth. Then it got large so we took him to a new vet. She said it looked like a tumor. After that it grew large within days. We sent her pictures then she said it don't look like a tumor. Sometimes it doesn't bother him at all other days he bites it like today. He but into his skin. Here's the pictures. Anyone have any insights?

 

[Pixiebeak]

It looks like it needs to be removed. Whatever is going on, it's going to get or is infected. Draining holes and compromised tissue are prone to infection

 

[Zara]

I would return to the vet or find another vet. Don't stop until someone gives you some sort of answers of at least a treatment plan.