DIY- Chocolate face mask

I've always had oily acne prone skin.  You know that girl in high school with the thick bangs?  That was me, hiding the pimple constellation on my forehead.  Anyhoo, because I've been breaking out more than usual I found a recipe for a diy chocolate face mask here.  We already owned all 4 ingredients, so I gave it a try.   

Ingredients:
 - 1/3 C cocoa powder
 - 3 T plain yogurt
 - 1 T honey
 - Squeeze of lemon

I mixed all the ingredients together, then applied a thin layer to my face.  The mask was incredibly thick and cool on my skin.  It also smelled so deliciously chocolatey that I couldn't help but try a taste...

 but I really shouldn't have done that because it tasted bad.  Really really bad. 

There was a ton left, so I probably could have refrigerated it and used it later.  But I accidentally left it out and so we had to toss it out.  :(

Have you ever tried making your own face mask?