SPN prompt(Castiel)

[SpookyScarySkeleton]

I thought of this prompt : Set during the Christmas season, Castiel turns out to be allergic to pine trees and the two brothers have to try to figure out what is causing the angel to first of all sneeze and second, have an allergic attack.

let your creativity flow, I hope someone picks this up and writes this w lots of Cas sneeze.

Thanks in advance !