The area between my vagina and thighs are itchy, red, burning, and smell kinda gross. I have aired it out while sleeping but the itch will not end.

Probably yeast. Try keeping the area clean and dry. You can try over the counter lam idol cream twice a day. If it is not improving after a few days see your doctor. It may take a week or so to go away. If your skin touches itself there all the time try putting a cotton hanky between your legs to separate the skin and it will keep the infection from coming back. You can use Hydrocortisone cream for the itch.