I went to the dermatologist and my face is brown?

So I went to the dermatologist %26amp; got off all my blackheads %26amp; pimples on my nose, chin, and foread. Now ever since last week I have these brown %26amp; red spots where she got them off. I want them to go away but they won%26#039;t! I look horrible, %26amp; don%26#039;t want to keep on going this way for school. A few days later after I got back from the dermatologist there was this huge zit that I popped and white stuff came out. So I got that done, but I want those brown stuff to go away!|||sue your dermatologist