My Jingles (RB) had something similar on the rim of her lower lid. It wasn't pus or fluid filled, but solid and was a bit smaller than Gigi's bump. Her's would have needed to be removed under anesthesia (more of a wart type thing) so as it was not hindering her sight in any way, the vet said to just leave it be. After reading the other comments, it seems what Gigi might have is common in puppies, i.e. acne. I'd probably just have the vet check it out next visit! Poor little Gigi sure has had her fair share lately! Please give the wee one a hug for me!