In one sentence, describe what the following article is about:

The smell of onions can actually stay on your breath for a few days after eating them. Luckily, there are certain foods you can eat after having onions to get rid of onion breath. For fresh breath after an onion dish, try eating or drinking:  Kiwi Fresh parsley Raw mushrooms Eggplant Raw apples Lemon juice Green tea Onion smell even gets into your hair, and this can be difficult to remove sometimes. When your hair does smell like onions, or other cooking smells, get rid of the odor by:  Mix ⅛ cup (29 ml) of shampoo with a teaspoon (5 g) of baking soda and a tablespoon (5 ml) of lemon juice. Wash your hair with the mixture, lathering thoroughly and rubbing the mixture into your scalp as well. Rinse your hair with clean water.

Summary:
Eat the right foods to get rid of onion breath. Wash your hair with baking soda and citrus to get rid of onion smell.