Suggest Remedy Itchy Vagina

I have itching problem related to my vagina. About 5 days ago, My husband licked it with his tongue and sucked. He continued to lick it to masturbate me. After that night I start itching inside my vagina. It is increasing day by day. I feel some relief by applying coconut oil on and inside it, but the problem starts after some time. Daily I face the itching problem, help me.