Can drinking tea tree oil get rid of acne scars?

No. It is a weak estrogen and has given men gynecomastia. It is the one topical remedy for active lesions of acne for people who belong to cults that allow only plant-based medicine. I would urge these people to wise up, especially if they're responsible for a teen's physical and emotional health. They won't touch scars, which should never be allowed to develop nowadays.