Tried baking soda as an exfoliant but it hurt my skin! help!?

so i used baking soda to exfoliate my face to get rid of acne scars. on one spot i guess i rubbed a little too hard. it stung for a while after and now it feels like when you get a very light rug burn. smooth but a weird texture (almost rubbery but not) and i can't coverup the acne scar under it now!! help! how do i make my skin go back to normal