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Sneezing or stuffiness indoors, or around pets, dust, or mold

Also called: Indoor allergies, perennial allergic rhinitis, dust mite allergy, pet allergy

Sneezing, stuffy or runny nose, and itchy eyes indoors or around pets, dust, or mold are signs of year-round allergies. Reducing allergens at home and using allergy medicines usually helps.

Common causesDust mites, pet dander, mold, cockroaches
Usually serious?No
Get checked ifSymptoms affect sleep or daily life, or with asthma
If you think it's an emergency, call 911.Thinking about suicide? Call or text 988.

Overview

Dust mites live in bedding and carpets. Pet dander, mold, and cockroach droppings are other common indoor allergens.

Symptoms may be year-round and can trigger asthma.

When to get medical care

Call 911Trouble breathing, wheezing, throat tightness, swelling of the lips or tongue, dizziness, or fainting (possible anaphylaxis). Use an epinephrine auto-injector if you have one.
Get care todayWheezing or shortness of breath.
See a doctor soonSymptoms that don't improve with over-the-counter medicine. Snoring or poor sleep.

Causes

Causes include allergies to dust mites, pet dander, mold, and cockroaches, and non-allergic rhinitis.

OwieClear has pages on 1 condition that can cause sneezing or stuffiness indoors, or around pets, dust, or mold. Each shows how soon to get care.

Common causes

What you can do at home

  • Use allergy-proof covers on pillows and mattresses.
  • Wash bedding weekly in hot water.
  • Keep pets out of the bedroom.
  • Use a HEPA filter.
  • Fix leaks and reduce humidity.

Medicines

Antihistamines and steroid nose sprays help. Allergy shots can help long-term.

At the doctor

Allergy tests can find triggers.

Questions you may be asked

  • When symptoms happen
  • Pets and home

The exam

A nose and eye exam.

Tests

  • Allergy skin or blood tests

Prevention

Reduce allergens.

  • Clean regularly
  • Control humidity

Check your symptoms

Most symptoms have more than one possible cause. The symptom checker looks at all of your symptoms together, plus your age, and shows how soon to get care.

Start the symptom checker

Sources

Last updated 2026-11-13.