first of all. lets find the reason of bad breadth. so firstly visit a dentist and then do a scaling and polishing.later learn correct brushing technique and flossing . so that you will be able to maintain a good oral hygiene by yourself.you can use any mouthwash which is available in market but once when you remove the bad breath then you will be able to get a good result of mouthwash. For any more query or treatment visit us today.Dr Ratnika Agarwal , Dental Surgeon/Owner of Smile Up Dental Care & Implant Center ,PUNE.We offer Dental and cosmetic treatments for all age group.Please consult our team of experienced doctors to help you with cost and period for the treatment suitable.You can book appointment with us online on Just dial and Practo or call us directly.