Frankincense may cause mild skin irritation when applied topicallytopicallyto be applied on the skin. When used orallyorallyto be taken by mouth (swallowed), frankincense may cause upset stomach, diarrhea, drowsiness, or liver damage.
Frankincense may interact with some medications including antibiotics (e.g., amoxicillin), antifungal medications (e.g., fluconazole), arthritis medications (e.g., methotrexate), medications to treat cancer (e.g., cisplatin), certain asthma medications (e.g., montelukast), or medications to lower cholesterol (e.g., rosuvastatin).
Do not use frankincense while pregnant or breast-feeding, or if you are allergic to frankincense, Boswellia trees, or any plant from the Burseraceae family.
Talk to your health care provider before using frankincense if you have liver damage or poor liver function, lung disease, autoimmune diseases, or gastroesophageal reflux disease (GERD). Check with a health care provider before giving frankincense to children.
Before taking any new medications, including natural health products, speak to your physician, pharmacist, or other health care provider. Tell your health care provider about any natural health products you may be taking.