I uncap the little bottle of Visene I keep in the mesh pocket of my dark blue messenger bag: allergy relief. Holding it vertical, I make sure to pull my eyelid back with my fingertips, to prevent the natural reflex from occurring, to stop nature from protecting itself. I gently squeeze the bottle, and in lieu of tears a drop or two of the fluid falls into each eye. Dust and pollen aside, tetrahydrozoline hydrochloride does nothing to suppress the itching and burning of stardust trapped in bumps beneath the eyelid.