I've used several bottles of these and while it is a bit expensive for a spot treatment, it lasts quite a while. To use, put a small drop of gel on a zit with a head. It may sting momentarily and will...

I used to use this product when I didn't know much about acne care. The active ingredient in this product is sulfur, and it does have a medicinal smell, though the smell of sulfur isn't that strong fo...