Prolonged bleeding from 15 days.

I got my period after 4 months and intial 7 days no bleeding, only occasional spotting.from 8th day bleeding started and increased to medium- heavy flow.Took trapic mf 10tablets (completed 10th tablet today ), heavy bleeding reduced but still bleeding not completely stopped. Last period cycle was in March , with normal bleeding flow for 5 days.Last year my gynaecologist referred all reports and suggested to use metmorfin for one year.Till this March I got regular period while using metmorfin and from April no period till July 21st. Have pcod and thyroid problem.I take daily 25mg of thyronorm for thyroid issue. I had one c- section operation 6 years back and have one kid. Pls help me on how to reduce the bleeding.