It is the first time that I hear superstition about sneezing. We don't have that kind but no I won't believe it. First of all I have a son who is allergic to dust, if I am working with him and he will always sneeze first thing in the morning to the moment he inhales the dust from the office, then I will forever have the kind of omen? I must admit there are some superstitions that I believe in but the kind like that, no. Sneezing has a cause, mostly allergies. It is the body's way of disposing the impurities out the body system.