Heat oil in a small pan and add crushed garlic. Cook over low heat until garlic becomes fragrant, about 3-4 minutes, and garlic is infused in oil. Remove from heat.
Strain oil and pour into a sterile glass amber dropper bottle. Add 6-8 drops of tea tree oil. Shake well.
Drop 1-2 drops oil in ear as needed. Lie on side and gently massage behind ears, about 5 minutes to allow oil to absorb in ear. Use once per day as needed to support ear infections and ear health.
Make sure the garlic is roughly chopped or crushed to release juices.
Keep refrigerated for up to 1 week. Reheat oil as needed when using, and make a new batch after that 1 week timeframe to ensure purity.
To reheat, place the bottle of ear oil in a bowl of hot water for 1-2 minutes. Ensure the oil is not too hot by testing a drop on your hand. You can also use a thermometer to test the temperature of the oil.