Even I had this query aome of the mom's told to use menstrual cups ...it's very good to control heavy flow.if Ur not comfortable using it then ... now a days we get kotex overnight panties which properly fits the body ....prevents the leakage from back as well as sideways....u should try that ...I'm using it ...

Use sanitary pads or menstrual cups it really helps for heavy flow

I had after 1 year and it was normal, not heavy flow.

Use regular pads or tampons

How do u manage the heavy flow??