Hi! I Had Itchy Vagina Since Last 20 Days. I

Hi! I had itchy vagina since last 20 days. I tried having levocetrizine and candid-B powder initially. It gave slight relief but didn’t cure completely. Then a gyaenacologist advise me to take VDM kit which gave instant relief. Though slight itching was still there at times.
Now recently i had sex with my partner and now he has an itchy penis with white discharge.
What should we both do?
Do suggest both of us some medication.