I burned my finger with a VERY hot straightener?

and it burns!!! its a revlon ceramic straightener and the heat setting is on 35! right now i just burned the side of my finger, nd about half an inch of my finger, the skin is kinda rinkled. im home alone and idk what to do, what will help this?!?!?!?!
Update: im 13 how am i supposed to go to the store!!
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