Can I get rid of it quickly?

Okay so I think I have a yeast infection (nothing bad just slight itchiness and not even burning or discharge) if I get the stuff that you put in the vagina would it be gone sooner than a couple a couple days? I mentioned it to my mom and she said I could have the stuff tonight.

UPDATE: not really even itching anymore but I want to make sure the irritation is 100% gone