Vagina redness? Help please 😩

Hello! On the right side of the vagina lips (the inside area) is red. Its been for months more red than the left side & im not sure why. It doesn’t burn or itch or have a foul odor. Also I have not been sexually active in a year. I’m really not sure why it is red, again I am in no pain. Thank you for all your comments 💕