The Condition"...Acne lesions usually occur on the face, but can also occur on the neck, shoulders, chest, scalp, back, arms and legs..." Recommendation Tea Tree (Melaleuca alternifolia) oil"...Both treatments resulted in significant improvement of noninflamed and inflamed lesions after three months, with tea tree oil causing more severe facial redness and benzoyl peroxide being more effective in noninflamed lesions..."