Profas Tea Tree Oil is used depending on the problem being treated: - Acne: apply by gently dabbing on the affected areas. - Repellent: apply a small amount to the wrists and ankles. - Lice: apply two drops behind the ears as a preventative measure and in case of infestation mix several drops with the shampoo. - Muscle pain: like massage oil. - Wounds, bumps and burns: rub on the wound.