My private part itches after my period and discharges.I have not tried any drug yet

Yeast infection, go to doctors and get it checked, also maybe an STD

Possible yeast infection scrub well and baby powder for 2 days if nothing changes call dr.

No one on here can tell or even make a educated guess on what little info has been provided here. Do you have any discharge? Are you sexually active ?

It can be anything.