Talk to Gynecologist on Vaginal Infection

I had pock under the vagina when I had sex; later on, I started feeling itching under my vagina, after 2 days of sexual intercourse. I started having periods which ended 2 days ago. Since then, I have been facing yellowish bad odor fluid discharge.

Did you have sex other than one person in last 3 months: No Do you apply any vaginal cream or vaginal wash: Yes Do you have faced such infection ever in your life: Yes

Please suggest any medicine.