Hi I Have My Periods Heavy Bleeding For 3 Weeks

Hi I have my periods heavy bleeding for 3 weeks now. I consulted my doc and prescribed me trapic thrice a day for 3 days. But it didnt stop. Again when i visited her she gave me meprate 10 mg thrice for 10 days and use 2000 tonic to take 10ml at night. After 2 days of usage the periods stopped yesterday night. But it is bleeding lightly since today afternoon. Please do let me know when will the bleeding stop.