Tea tree oil has been known to cause contact dermatitis and skin irritation for some people. [3] X Research source If you have sensitive skin, buy diluted tea tree oil or dilute it yourself using aloe vera gel, jojoba oil, or honey.

Although aloe vera gel is not scientifically proven to eliminate warts, some people find that its thicker consistency helps keep the tea tree oil from running off the face.

Never apply tea tree oil around your mouth. Tea tree oil is poisonous if ingested and can cause serious side effects like dizziness, confusion, and vomiting. [4] X Trustworthy Source U. S. National Capital Poison Center Independent poison control center providing resources to prevent poisonings and save lives Go to source

There’s no evidence that carrier oils help treat warts, but some people find they make applying tea tree oil to the scalp easier and less harsh.