You may be able to remedy this by rotating your head more toward the target. If you can do this, it will not only rotate your nose out of the path of the string, but may also improve your shooting, as a forward-facing head is considered good form. My head will only rotate so far, fortunately just far enough to get my nose out of the path of the string. If it wouldn't, I guess a visit to my chiropractor would be in order, to see if there he could increase my range of motion.