@R2elk please review this post & mb you can help over there. You can skip the inbetweens, he posts pictures toward the end.
https://www.backyardchickens.com/threads/guinea-hen-with-diarrhea-and-soiled-vent.1664291/
https://www.backyardchickens.com/threads/guinea-hen-with-diarrhea-and-soiled-vent.1664291/