There are several essential oils that you can use for a baby. Chamomile is soothing and helps with insomnia. Lemon can boost their mood and energy in the morning or after a nap. Dill is calming and can soothe indigestion. Eucalyptus is great for congestion. Lavender or mandarin can help calm them and put them to sleep. There are many more, as well, so do a bit of research and find the right ones for your little one’s specific needs. Be sure your humidifier can support the use of essential oils, too, or you`ll need a separate diffuser.