I am not sure exactly what you are meaning? Can you provide a picture? All budgies of course have ceres where their nostils are. They can at times get tumors close to this area. They can also get scaly face/feet mites that can cause their cere to swell and have a bumpy or holey appearance. If you could provide a picture we might get an idea of what you are meaning. With either of the above conditions a vet would need to be consulted.