Can dust mites cause me to wake up every morning with swollen lips?

Don't know: Any allergic reaction can cause either local or systemic response to your body. It's hard to tell if this is a know reaction. You may need allergy testing. Also check if you are not exposed to something else such as prescribed meds or other environmental exposures.

Maybe: Swollen lips is not a typical symptom of dust mite allergy, but if you're allergic to dust mites, it might contribute to the lip swelling. You also need to be concerned about autoimmune disorders such as thyroid problems.

Maybe: It's unlikely, but if you have an extreme allergy, it's possible. Much more likely to be something like a detergent, fabric softener, or toothpaste ingredient. There's a prescription cream you could put on your lips at bedtime to check if it's an allergy or a vascular problem.