Allergen Information Center
Find allergens that cause nasal congestion symptoms.
nasal congestion
Environmental Allergies
Mold
Medium Risk
Mold spores in the air can cause nasal congestion, sneezing, coughing, and itchy eyes, sometimes triggering asthma attacks.
Common Symptoms
Nasal congestion
Sneezing
Coughing
Itchy eyes
Asthma attacks
Insects Allergies
Cockroach
Medium Risk
Proteins in cockroach droppings and bodies can trigger sneezing, coughing, and asthma attacks.
Common Symptoms
Sneezing
Coughing
Asthma attacks
Runny nose
Wheezing
Nasal congestion