This morning I was petting him and found crustiness under
his chin. It was a dried scab sort of thing. I cleaned it with hydrogen peroxide and salt water. It's a hole like a pimple. It's a lump too. Only blood was on the qtip, nothing yellow. I checked his teeth, they all look ok. I can't see under his tongue. He's been acting normally, eating hard and soft food, going to the bathroom, etc.