What to do for mama with stillborn?

[Nanno]

Nubbin just gave birth three weeks early, and one of the babies was very bloated and had lost a lot of its hair. Since it had been dead in there a while, I'm concerned that Nubbin could get an infection. I have peni-cillin on hand. I'm not sure how much to give or for how many days though. Is there anything else I need to do for her?

Since there was no afterbirth hanging out, I went inside to check for any more dead kids and all I could feel was a bunch of junk. I'm guessing this was the afterbirth. She started contracting shortly after and is slowly passing a string of lumpy dark red. It looks normal to me and it doesn't stink. Anything else I need to watch out for?