Is the continuous bleeding for 46 days after a C-section, and the light bleeding that follows, menstrual blood, and should one resume prayer or wait until it stops?

The maximum duration for postpartum bleeding (nifas) is forty days. Any bleeding beyond this period is not considered menstruation (hayd) unless it coincides with the woman's regular menstrual cycle. In this case, the woman is considered to be experiencing irregular bleeding (istihada), and she must perform ablution (wudu') for each prayer after its time has begun, and pray with that ablution as many obligatory and supererogatory prayers as she wishes until the time for that prayer exits.