Sneezing is more likely to happen in reaction to a moldy environment. or any perfume (soap) allergies.
In most case, when you are allergic, you will suddenly feel really, utterly tired right after -eating/smelling something. Last year I could not walk down the soap alley at the grocery store without a strong reaction. And there was only one type of soap for the house chores I was not allergic to: a toilet liquid so I used it at different concentration for all my needs.