Need Acne Treatment

Help! I need the best acne treatment available! I have been getting large pimples recently and I have a wedding to attend this weekend. It has reduced a little with various treatments I have been using but its still big and ugly :( Sigh...I don't know why I'm still getting spots at this age! I used to think it was a teenage thing! I used to use a really good product called Neostrata when I was in Australia which kept my skin under control. However, I don't seem to find a similar product here. Anyone have any recommendations?