Hello, I can understand your concern. Bad smell from mouth could be due to many reasons related and unrelated to dental diseases. It could be due to dental infections, gum disease, sinus problem, food habits, inadequate oral hygiene etc. In addition, kidney disease can also cause bad breath from mouth. Thus, I would advise you to wait till the results of your test come. If they indicate presence of kidney disease, then you can start treatment for the disease and the bad breath will eliminate on recovery from the disease. If the test shows negative for any pathology, you should visit a dentist to look for presence of dental infections or gum problems. Treatment of the disease can sure such problem. By the time the underlying cause is detected and treated, you can use mouthwash containing Chlorhexidine such as Colgate Plax or Hexidine. You can take 10 ml of liquid and squish it around mouth for about 30 seconds before spitting it. Take care no to use immediately after brushing teeth and do not eat or drink anything for half an hour after its use. Brush twice a day and use dental floss to clean interdental spaces. I hope this information helps you. Thank you for choosing HealthcareMagic. I wish you feel better soon. Best, Dr. Viraj Shah