I am allergic to Dairy products (gives me skin rashes etc

) . I am trying to gain weight and I got a Whey Protein shake by Designer Whey. It helped me gain weight but along with that the milk extracts made my face look like someone threw acid on it or something (ok not thaaat bad) ..
Now I'm off all whey protein shakes.. my face looks fine.. but I need a non milk whey protein shake...
As far as I know whey comes from milk.. so does that mean I'm out of luck? Is there any other type of nondairy protein drink out there that any one can recommend?