Why Do I Have Prolonged Menstrual Bleeding That Has Lasted For A Month?

Hi good day ma’am Am having longer menstraution for atleast a month or more Just slight bleeding that won’t stop again Pls wat can I use Am a nurse too My doctor insert IUCD for me after that the menstraution balance But later it changed to 30:35 days Am tired Wat drugs can I use to balance it pls Thanks