What Causes Excessive Irritation With Red Patches Around The Vagina?

Yes. I had wasked some of my panties in clorox, but felt they may not have rinsed out as well as they should have. When wearing them I felt some tingling discomfort. I was sweating a great deal from excessive heat outdoor and activities. I kept bathing, but noticed redness around the panty line and used powder. Now I have excessive redness coving the total area where the crotch of my panties cover and the panty line is and the vaginal area with some darkish looking areas. I feel I have colorox burns. Can you help me?