Seasonal or environmental allergies can cause the body to produce more mucus.
When you’re exposed to substances such as pollen, dust mites, mold, or animal dander, your immune system may respond with inflammation in the nose and airways.
Typical allergy symptoms include:
Sneezing
Runny nose
Nasal congestion
Itchy eyes
Watery eyes
Throat irritation
Postnasal drainage
Coughing
Unlike many respiratory infections, allergies typically don’t cause fever.
You may also notice that your symptoms appear repeatedly during certain seasons or after exposure to a particular environment.
For example, you might feel
