Help! my vag is itchy for no reason. can i put anything on it to relieve it?

Yes: Consider an anti-fungal over the counter cream. Most typically itching is due to a yeast infection and a simple over the counter cream can cure the itching that you have. We don't always know why a yeast infection comes on, but consider if there's been anything different recently in your exposure to different soaps, chlorine, bath products, lubricants, diet changes, etc. Hope that helps!