Itchy but no yeast infection

Hey !

So I have been suffering with itching in my vagina since August.

I tried treating myself with Yeast Infection Cremes and all that.

But nothing got rid of the issue.

(I was also on birth control but stopped it recently, because I thought maybe that was the reason , like a dry vagina can cause itching and such)

Anyways I went to my doctor and she sent me to a laboratory to check if I have any infections.

I don't have any infections whatsoever.

Yet she still prescribed me yeast infection cream and pills again.

Eventhough she said I dont have an infection.

I am confused?

What should I do ?

Anyone else who has struggled with that before?

Help!