What to do about itching and soreness down there from my anus to my clit no odor or discharge sometimes feel like I'm leaking?

Could be anything. Itching could be from hemorrhoids, warts, certain allergies and increase ingestion of food products such as coffee, chocolate, beer, tomatoes, spicy food, orange juice, grape fruit juice and nuts etc. Scratching usually makes it worse. There are over the counter remedies such as prep h and calmoseptine ointments. I would recommend getting a detailed physical exam.