I have suffered from blepharitis on and off since 2007 and it has been such a pain. Red, teary eyes, itchin' like a b*tch. This last bout has been the worst.
I'd been thinking about real, natural salt without additives being a great cure-all, and I wanted to try this on my condition. At this point, I was willing to try anything.
I dissolved a teaspoon of Sea Salt in a cup of lukewarm distilled water, and used this as an eye bath. At first, I did it 3 times a day. After about 5 days, I reduced that to twice a day, and then after several more days I noticed I'd forgotten to do the eye bath in the morning. My eyes were 90% itch-, redness-, and tear-free! The eye bath burns a little, but not bad. It's just like swimming in the ocean. ;)
This morning I did the eye bath again 'cause I felt some itching, and it quickly made it go away. By the way, this is important: after the salt water eye bath, I let my eyes dry for a few minutes and then apply VIRGIN COCONUT OIL to my upper and lower inner eyelids. I simply dip a Q-tip in the coconut oil, let the excess drip, and swab my lids gently. I only use 1 Q-tip for both eyes (one end per eye). It makes your vision blurred for about 15 minutes, and then you see clearly again.
As a side effect, I also found that my eyelashes had become freakishly long! I believe it's the coconut oil that's responsible for this.
At present, I would say my blepharitis is under control with the salt water eye bath and coconut oil method. Try it--it might work for you!