Could Postinor 2 Be Causing My Vaginal Itching, Or Is It A Recurrent Infection?

Good day. Pls I noticed itching in my private part few days after taking postinor 2, in which I haven t taken before, tho I used to have toilet infection before but it doesn t itch me, so I want to know what exactly the problem is and what exactly I can use to cure it.