What is a prototype? A prototype is a design tool used to help create a new product, much like a model. There are different kinds of prototypes; some are more like rough drafts and some are more like the final version. When you first come up with an idea for a new product, you'll probably sketch it out so you can show people what you're thinking of: This is one version of a prototype. But as time goes on, you'll want to make your drawing more detailed, especially if you're thinking about creating a complicated system.
Definition of sneeze. sneezed. ; sneezing. intransitive verb. : to make a sudden violent spasmodic audible expiration of breath through the nose and mouth especially as a reflex act.
Fundamentally, a sneeze is a way the body removes inflammation and congestion from the nasal passages. Much like a cough keeps the airways clear, a sneeze is a reflex to keep the nasal passages clear. As such, sneezing after meals suggests that there is some cause of inflammation that occurs after each meal. As for what is causing the inflammation, you are right in thinking allergies are the most common cause. Common food allergies such as egg, peanut, etc should be ruled out.