Well, just had my first experience with residual pepper juice in the eye at why-the-hell-would-anyone-still-be-awake-o'clock and no milk, milk substitute, or saline solution to be found. After several minutes of frantic googling I discovered that apparently propylene glycol is a capsaicin neutralizer because it breaks down oils. Unfortunately it's usually found in soaps and shampoos. Worse, NOT in any soaps or shampoos that I own. But I finally found it in my sensitive-skin makeup wipes. So after flushing my eyes numerous times only have the pain come back after like 5 minutes, I defied the warning on the back of the makeup wipe package that said "Avoid contact with eyes" (hilariously right next to "formulated for sensitive eyes" and "ophthalmologist tested"), stuck a makeup wipe on my eye for a couple minutes, and then rinsed again. And it actually sorta helped. Now instead of stinging, my eye just feels uncomfortably cold, like the new skin under a popped blister.
Lesson learned: if you chop chilies and wash your hands with soap and water, Satan's fiery toe-jam will still be on your hands nearly a day full of hand-washing later. So you damn well better wash with dish detergent or some oil-based soap and FFS wash under your nails, too. And if you're too stupid for any of that, at least have unsweetened full-fat milk of some kind (dairy or nut) on hand.
Also one of those rare occasions where I was exceptionally glad to be a female with all the accompanying primping and de-primping accoutrements.