If i'm allergic to peanut er should i eat pecans?

Im allergic to peanut er and peanuts. So my Foods1 cl is making Pecan Brownies will I be okay eating the brownies is my question. when i have an allergic reaction my face swells and i get hives and eventually my throat swells. I have never had pecans so i don't know what to do. THE FINAL IS MONDAY SO I NEED ANSWERS RIGHT AWAY PLEASE!!