Tips: 1. Eat apple, lettuce or mint: Apples break down the odour-causing compounds and help in getting rid of odour. Lettuce leaves a fresh taste in the mouth and deodorizes Onion breath while the fresh scent of mint masks the pungent Onion odour leaving the mouth refreshed. 2. Drink milk: Milk reduces the amount of odour-causing compounds and deodorizes Onion breath. 3. Brush and floss after meals: Odour-causing compounds and bacteria can deposit in the gum line and teeth. This might cause build-up of plaque. This can be removed by brushing and flossing after meals to get rid of bad breath caused by Onion. 4. Lemon: Lemon is rich in citric acid that can neutralize Onion odour. It also has antibacterial property and can kill odour-causing bacteria. a. Take 1 tablespoon of lemon juice. b. Add it to a cup of water and mix well. c. Rinse your mouth with this lemon water 2-3 times till the bad odour is gone. 5. Diluted apple cider vinegar: Apple cider vinegar helps the good bacteria to flourish due to the presence of pectin. It helps in getting rid of bad breath due to Onion. a. Take 1-2 tablespoons of apple cider vinegar. b. Mix it well in a cup of water. c. Drink or rinse your mouth with it for 10-15 seconds after meals. 6. Sugar: Sugar granules help get rid of odour-causing byproducts of Onion as well as bad breath-causing bacteria. Put a few sugar granules in your mouth for a few seconds before chewing them.