No it will not go away with constant flossing.
What I can understand from your explanation is that you have calculus deposite on the inner side of your teeth.
You can try using a medium or hard brush once or twice a week. Rest of the days use a soft brush.
Use xtar toothpaste at night.
Next Steps
Video consult or Visit dentist
Health Tips
Do not delay in consultation as the gum infection will continue to grow.