Oil of oregano is a popular natural remedy that has been used for centuries to treat a variety of ailments. It is derived from the leaves and flowers of the oregano plant and contains a compound called carvacrol, which is believed to have antimicrobial and antioxidant properties. While oil of oregano is generally considered safe for most people, there are potential side effects that you should be aware of before using it. In this article, we will explore the wellhealthorganic.com:health-benefits-and-side-effects-of-oil-of-oregano and provide tips for using it safely.

Gastrointestinal Issues:

One of the most common side effects of oil of oregano is gastrointestinal issues such as nausea, vomiting, and diarrhea. These symptoms can occur because the oil is a strong antimicrobial agent that can disrupt the balance of bacteria in the gut. If you experience these symptoms, it is recommended to discontinue use and consult with a healthcare professional.

Skin Irritation:

Another potential side effect of oil of oregano is skin irritation. This can occur when the oil is applied topically or used in high concentrations. It may cause redness, itching, and even a burning sensation. It is important to dilute the oil with a carrier oil such as coconut or olive oil before applying it to the skin.

Allergic Reactions:

In rare cases, oil of oregano can cause allergic reactions. Symptoms can include hives, difficulty breathing, and swelling of the face, lips, tongue, or throat. If you experience any of these symptoms, seek medical attention immediately.

Interactions with Medications:

Oil of oregano can potentially interact with certain medications, including blood thinners and medications for diabetes. It is important to speak with a healthcare professional before using oil of oregano if you are taking any medications.


Oil of oregano is generally safe when used in small amounts, but excessive use can be toxic. Overuse can lead to symptoms such as dizziness, nausea, and even hallucinations. It is important to follow the recommended dosage and not exceed it.


Oil of oregano is a natural remedy that has many potential benefits, but it is important to be aware of the potential side effects. If you experience any adverse reactions, it is recommended to discontinue use and consult with a healthcare professional. By following the recommended dosage and using it safely, you can reap the benefits of oil of oregano without the risk of negative side effects.

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