Yes, steaming your face helps acne - when you put steam on your face the pores are opened up and toxins are flushed out. Since pimples are caused by toxins you should see an improvement within a few days.

Pimples are caused by toxins? Is that true?

It really depends on what kind of acne you have - some people just have really oily skin and I'm not sure steaming their faces would help, but I get acne when my face dries out so steaming it really helps.

I think that steaming your face helps if you have oily skin even more, actually. It opens up all the pores and let's you flush them out.

I'm not saying that it won't work but isn't that the opposite of what you're supposed to do? Most acne medicines kill it by drying it out (alcohol and stuff), so it seems like steaming it would only make it worse.