Aww poor Charlie!! My poor Coco had this like 2-3 mnths ago. Hers was big as well, and right on her bootie. So they drained it and did surgery, and she was back to herself that night
The surgery was quick, and she was done. So try not to worry too much. Coco is only 5 lbs but did great. I have learned my lesson and when I see her scoot I immediately express her anal glands. Keep us posted on Charlie. Where is his abscess?