Is Continuous Brown Discharge After Completing A Deviry Course Normal?

Hello Dr.My daughter is 20yrs old &she had a problem of heavy bleeding dr.advised her deviry course(3.tablets for 1st five days 2tab for next5days &1tab for 15 days)in between the course she started periods and since then brown discharge started continuously though the course is over 10days back.Before taking medicine atleast she was getting periods for only 6days but after the course continuously brown discharge.Now she don t want to take any medicine she is very upset.i m worried about her health. Please answer weather is it normal..