Not sure who you are directing this last question to.
Just looked at the style n clean pen and great care would be needed or you'll end up with a corneal abrasion.
I have had blepharitis for some years and only recently found a product that actually helps, so I know exactly how you feel. I found a product that you can use to clean your eyelids with and that also comes with a cleansing gel that has done wonders for my eyes. It's called style'n'clean pen and cleansing gel. Hope this can help you to.
Salt in US drinking water is very minimal. If it were a problem distilled water could be used. actually many people find with with salt (normal saline) is more comfortable than hypotonic tap water.
JCHMD
That is unusual, especially not responding to such vigorous treatment and also just being one eye. I would suggest a second opinion from an ophthalmologist, if possible one that specializes in cornea and external disease. It may be something other than blepharitis. JCH MD