The Don'ts The American Association of Naturopathic Physicians do not advise use of essential oils topically or aromatically with children under the age of 3 months. Don't allow your infant or child to ingest essential oils. Essential oils are toxic to infants and small children when ingested.
To stay on the safe side, wait until your baby is at least 2 years old to use essential oils around them, says Dr. Axe. “Generally, children 2 years old and older can use most essential oils safely,” he adds. But if you do choose to use any, whether by diffusing them or applying topically, do so with caution and care.
Dilution Recommendations When using essential oils on babies and children, it is always best to dilute the pure essential oil with a carrier oil. For older children, dilute 1-2 drops of essential oil with 1/2-1 tsp. of carrier oil. For newborns and infants, dilute 1-2 drops in 2 Tbs.
1-2 drops When it comes to diffusing essential oils around babies, it's much safer than using them on the skin. But even then, it can be irritating to some. We recommend only diffusing 1-2 drops of essential oils and not diffusing essential oils for babies longer than an hour.
Whilst Eucalyptus Globulus (Blue Gum Eucalyptus) is perfectly safe for adults, it should never be used on children under the age of 2 years. It is important to check with your family doctor, GP or your paediatrician before using eucalyptus to ease cold and respiratory symptoms.