Heavy Menstrual flow may be due to different reasons. Please get her USG done to know the exact reason for this. You can give following medicines which will help relieve the symptoms.
1. Ushirasava
2. Ashokarishta
3. Lodhrasav
Each liquid 10ml x 2 times a day..for 1 month
Next Steps
You can consult me directly after getting USG done.
Health Tips
Stop spicy foods and junk food. A glassful of sweetlime juice every afternoon is useful. Take a glass of buttermilk with lunch.