Hi I Made The Mistake Of Trying The Baking Soda

Hi I made the mistake of trying the baking soda feminine hygiene thing...money I did it completely rug instead of making a paste and dabbing a finger I rubbed the baking soda directly on my vaginal area and it burned me but I just thought that it was because I never used it before but after a couple days I looked and I'm chemically burned and it hurts...what do I do?