red chilly vs alien

Probably I am watching a lot of Alien flicks, but a second ago this thought just crawled into my mind (I was coding some JavaScript) - while fighting an alien creature with creepy & cruel eyes why don't our protagonist try to blind the alien by throwing some red chilly powder in those hollows. Anyways, they don't know to overpower the ET, so may be this trick can also get a chance on theaters. Any script-writers reading ... ?