I used to dread chopping onions! I mean really dread it! My husband would always walk in the kitchen and ask what was wrong when he saw my blood shot eyes and tears running down my face, not to mention my messy eye makeup. I tried all the tricks. I even went so far as to wear sunglasses while chopping onions. Nothing ever worked! A few years ago a friend of mine mentioned that if you put an onion in the freezer before you chop it, it will save you the tears. It sounded too simple, but I gave it a try and it worked! Not a single tear was shed.
Give it a try. The next time a recipe calls for onion, put it in the freezer for about ten minutes before chopping. It will definitely save you some tears and mascara!