Can the odor be due to poor hygiene?
It is known that excessive cleaning of the vagina or douching using pre-packaged mixes of water and vinegar, baking soda or iodine, can cause unpleasant vaginal odor. Douching can change the necessary balance of bacteria that live in the vagina and natural acidity in a healthy vagina. A healthy vagina has both good and harmful bacteria. This balance of bacteria helps maintain an acidic environment, protecting the vagina from infections or irritation. Douching can cause an overgrowth of harmful bacteria which can lead to a yeast infection or bacterial vaginosis.
You should not douche to try to get rid of vaginal odor or other vaginal problems like discharge, pain, itching, or burning. Douching will only cover up odor for a short time and will make other problems worse.