Allergic Reaction to Dust Mite Bites. A good portion of the dust in your home is composed of dust mite feces and decomposing dust mite bodies. Quite many individuals who believe they’re allergic to dust really have an allergy to this protein-rich dust, which often triggers symptoms of asthma and hay fever.
https://pestbugs.org/dust-mites/bites-pictures-signs-humans-vs-bed-bugs/

