Melaleuca oil

You're certainly familiar with this oil by its more widespread name, tea tree oil, and its distinct medicinal aroma.

In addition to treating hypersensitivity, it is also used in several other therapies. This oil should only be inhaled or used topically; it should never be ingested. You may encounter stomach difficulties, rashes, or dizziness if you do. Tea tree oil is available in several strengths. If it's pure, be sure to dilute it. Tea tree oil - or any other oil, for that matter - can potentially cause allergic reactions.