It's either a very bizarre PR stunt, or Robert Pattinson is trying to kill his publicist. In an age when young, hot movie guys are supposed to be super studs, he may have just handed his movie career a death sentence ...
Huh? What? ... Oh, I get it, now ... Ha! It's a joke, an English joke! Ha ... you see, when you're allergic to something you tend to ... swell up ... Ha, ha ... ahem. (I am so embarrassed!)
Just ignore that first paragraph. I didn't mean to mislead.