Need help removing ssss in Adobe Audition - Have tried the de esser and other basic tools

I am working on cleaning up a recording in Audition.  I followed a tutorial to do all the basics and it certainly sounds much better.  I used the deEsser tool once or twice but there is still a kind of  'hiss' or like dragged out ssss sound on some of the s's.  They aren't loud enough to go into the red or sound too harsh but they are sssss-y (like a sssnake)   I have done some youtube research but haven't quite figured it out.  One method that seems to work is to go in and manually remove each 'sss' area but there's got to be a better way...Looking for any guidance.

The recording is 2-3 minutes and I'm not sure that recording is an option, so I'd like to make this work without a new take. 

Thank you !