I have tried many acne spot treatment over the years including over-the-counter (Neutrogena, Clean&Clear, Clearasil, Adult Acnomel, Burt's Bees..), Proactiv, high-end brands (Shiseido,Origins..), etc. and none of them work well (or would work at first and then became ineffective).
Most just dried my skin out, and the pimple would still be there. My mom came back from a trip from Hong Kong last year and brought some of this cream back for me to try. She said it was a best-seller overseas in Asia.
This cream actually works! It does have a weird smell to it (probably due to the sulfur I think), but it flattens the pimple fairly quickly overnight without causing too much overdrying. It is pretty pricey, but can't be picky since there's limited availability online.