Strawberries

"Illustration" courtesy of:  https://www.craiyon.com "strawberry and bee hive"

We know an individual who was allergic to strawberries as a child or still is.  They broke out in "hives" or a "rash" every time they ate them.

As an adult, whenever a specific "vape" or any "vape" is "smoked" in their home they get a "rash" on their face.  It may or may not be related to the "height" a "vape" is "smoked".

Let's "work backward" after inferring a correlation:

• The individual is not known to be allergic to anything but strawberries.
• The individual does not eat strawberries and doesn't get "hives" or "rashes".
• The individual has one or more "guests" over who smoke a "vape" and then "hives" or "rashes" result.

There may or may not be a "connection".  It's limited to what is known or unknown.

Can a "chemical" or "component" in the vape be the culprit?  We do or don't know.

Is it backward to ask "guests" to refrain from "vaping"?

Most certainly not.