Suggest Treatment For Prolonged Period

I am 27 year old. I had regular periods upto the last month but last month I suffered from fever and cold for which doctor gave me some pracetamol and antibiotics. This month my period continues more than 15 days. Doctor prescribed me Evecare and Trenaxa, which i was taking from past two days. But still the period was not stopped. Kindly suggest me what to do?