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Hyssop oil has been used for centuries in folk medicine, but this doesn’t mean it can’t cause side effects. When used topically, some may experience symptoms of an allergic reaction, such as:
- • red rash
- • itchy skin
- • hives
- • dryness and peeling
- • swelling
- • sneezing and runny nose
Do not take hyssop oil by mouth. Doing so can increase your risk for the following:
- • nausea
- • diarrhea
- • abdominal pain
- • anxiety
- • tremors *
