Inclusion Criteria:  Children aged 8-12 years old. Cooperative children. Both genders. Medically free to exclude systemic cause of halitosis. Bad breath  Exclusion Criteria:  Children using any other oral hygiene aid other than routine teeth brushing. Children with a known history of allergy to any mouthwash or drug. Parents refuse to participate in the trial. Treatment by antibiotic within one month before the trial(Pham & Nguyen, 2018). Abscess, draining sinus, cellulitis, or other conditions requiring emergency dental treatment. Children using fixed or removable orthodontic appliances or dentures. Children with a history of deleterious oral habits of mouth breathing.