Just ask for some antibiotics to treat her if he thinks it could be EYP. They can prescribe some powerful ones where most can't get the better ones at feed stores.
Here are some articles to read :
http://scoopfromthecoop.nutrenaworld.com/tag/laying-issues/
http://www.chickenvet.co.uk/health-and-common-diseases/egg-laying-issues/index.aspx
http://www.thepoultrysite.com/diseaseinfo/134/salpingitis
I have had chickens for 4 years, and I have only seen one suspected case of EYP. Ninety percent of mine came from hatcheries as chicks. I think it depends on the breeds you chose. I was reading an article on salpingitis (which is related to EYP) recently, and vent pecking by other chickens is...