Understood! I will try a very small dose first (I believe I need to mix it with water?). My order should be here any day now.
At the very least, thanks to the help I was given here, I decided to try an eyewash from the drugstore, which DID work (it's very cool and has B12 in it). So thanks everyone!
And my eyes are much better now than after the Vit.E incident. Still a bit pink, but I am confident they will recover really soon.