Ok, I just got my puppy on wednesday and she is doing good as far as eating, pooping and peeing. I was going to take her to the vet because she was shaking her head and scratching her little ear. Well, we woke up and she was fine, but she loves to play after she eats, we were playing and when she turn on her back (she loves to do this i don't know why) i saw a bump

, my poor baby

. I looks like a little sack filled with pus

ewww. So i take her to the vet and he told me it could be from her scratching and maybe infecting it

. Anyhow he poped it and put some cream and send us home

. I thought that was the end of it but its growing back. i will have a pic see if anybody can help me. I am scared

She is 6 weeks old.