Sorry about your tooth pains, @phoenix_dawn- having an aching tooth is the worst
I know frankincense is commonly used in perfumes, incense, and aromatherapy- its got a delightful smell on top of its magickal properties
That being said, I had never heard of it being safe for internal use (such as in the mouth where it’s easy to ingest). I did a bit of research, but WebMD has very minimal content about it (except for this warning about frankincense possibly interfering with the body’s response to COVID-19).
And Healthline says the following about how to use frankincense:
Frankincense can be used in several ways to treat a variety of conditions. You can take it as a supplement in the form of a capsule or tablet, or use it in skin creams.
It is also available as an essential oil for aromatherapy or topical use. It’s important to dilute this form with a carrier oil before applying it to the skin and to avoid ingesting it.
Full article on Healthline here
Although the same Healthline article does have a section saying that some believe that frankincense can help to maintain oral health when taken as a cheming gum- bit of a mixed signal
There was a note that frankinscence is used for various purposes in Ayurvedic traditions, but most of the sites discussing it (such as Banyan Botanicals: DIY with Frankincense) only list aromatherapy and external uses for frankincense.
TLDR: It looks like there are mixed signals about using frankincense internally, so anyone who chooses to use it in the mouth or by ingesting it should do so with caution.
But I second the vote for Peppermint and (culinary) lavender! These are both herbs with medicinal and magickal healing properties that are generally seemed quite safe for ingestion under normal circumstances
Sending good thoughts your way, @phoenix_dawn- may your tooth be feeling much better very soon!