Yes, she is in danger of infection from a collapsed egg, and also if she has salpingitis, and that's a possibility if the material is lash. (pus)
Any broad spectrum antibiotic will do. Amoxicillin, penicillin, Cephalexin, etc. The dosage depends on the antibiotic you have.
I have two Golden...
The photos aren't that clear. It would help to repost and select "full size" instead of "thumbnail."
But whether the material she expelled is lash or collapsed egg, she needs to be on an antibiotic. Do you have any on hand?