When it comes to home remedies for killing a cough, there are many options. Some of the most popular include honey and lemon, garlic and onion oil, steam inhalations with herbs such as lavender or sage, gargle with salt water mixed with baking soda (or infant Bayley's mixture), apple cider vinegar diluted in warm water, lozenges made from licorice root or slippery elm bark extract taken twice daily on an empty stomach before meals/bedtime. It is important to choose one remedy that you are comfortable using and that has been known to work well for others. Try different combinations until you find one that works best for you. And remember to always consult your health care professional if you have any questions about which remedy might be right for you.