Seasonal and Indoor Allergies Treatment

At Impact Medical, we specialize in managing environmental allergies including indoor and seasonal allergies.

What Are Seasonal Allergies?

Seasonal allergies, often called hay fever or allergic rhinitis, result from an exaggerated immune response to outdoor triggers, like mold spores and pollen (trees, grass, ragweed). These allergies exhibit a seasonal pattern, manifesting during specific times of the year when plants, grass, and trees release their allergenic particles, leading to symptoms such as sneezing, runny nose, and itchy eyes in affected individuals.

  • Tree Pollen is a common springtime seasonal allergen.
  • Grass Pollen is a common springtime seasonal allergen.
  • Ragweed Pollen is a common autumn seasonal allergen.
  • Mold Spores can also be associated with seasonal symptoms, most prominent during the fall season.

In the northeast United States, the following is an estimate of when different pollen levels are elevated

Time of Year Specific Pollen That Is Elevated
Late March – June 1st Tree Pollen
May 1st – July 1st Grass Pollen
Mid-August – First Frost Ragweed and Other Weed Pollens
October – November Mold Spores

What Are Indoor Allergies?

Indoor allergies can trigger year-round allergy and asthma symptoms.

Pet Allergies

Animals with dander can lead to allergy symptoms of the nose, eyes, respiratory tract, and skin. Cat and dog allergies are two of the most common allergies, but individuals can be allergic to any animal with dander, including horses, rabbits, guinea pigs, and birds. Patients with an animal dander allergy who have a pet at home typically complain of symptoms year-round, but their symptoms are usually worse in the winter when one spends more time indoors. 

Dust Mite Allergy

Dust mites are a common cause of nasal congestion, runny nose, post-nasal drip and coughing. Dust mites thrive in higher humidity environments, require human skin flakes to survive, and are found in higher concentrations on fabric materials such as bedding and carpeting. Dust mite allergies can often cause asthma. Those who suffer from an allergy to dust mites typically have symptoms year-round, but more specifically complain of worse symptoms upon awakening in the morning. 

Mold Allergy

Mold can be a cause of both seasonal and year-round allergies, depending on which mold spore a patient is allergic to because there are both indoor and outdoor molds. Symptoms of a mold spore allergy include nasal congestion, sneezing, itchy nose, eyes and throat, post-nasal drip, and coughing. Mold allergies can also cause asthma. Examples of the most common mold spores associated with allergies include alternaria, cladosporium, aspergillus and penicillium. 


What Are the Symptoms of Seasonal Allergies?

Itchy Eyes

Seasonal and indoor allergies may provoke itchy eyes, interfering with daily activities.

Watery Eyes

Excessive tearing is common in allergies, causing watery eyes and blurred vision.

Red and/or Puffy Eyes

Allergic reactions can cause redness and puffiness of the eyes.

Itchy Nose

Seasonal and indoor allergies can lead to an incessantly itchy nose, causing discomfort.

Runny Nose

Allergies trigger persistent runny noses, especially during peak pollen or with high exposure to an indoor allergen (such as a home with cats or dogs).

Nasal Congestion

Allergies often result in nasal blockage as a result of swelling of the nasal tissue and excess mucus production. Nasal congestion can be more severe in those individuals who also have a deviated septum, nasal polyps and adenoid hypertrophy.

Post-nasal Drip

Allergies can result in post-nasal drip, or the sensation of mucus dripping down the throat. This often leads to throat irritation and coughing.

Asthmatic Symptoms

Allergies can worsen asthma, leading to coughing, wheezing, and breathing difficulties.


Environmental allergies may exacerbate eczema, leading to itchy, red, and rough textured inflamed skin patches in affected individuals.

Diagnosing & Treating Seasonal and Indoor Allergies

Medical History

A patient’s clinical history and temporal correlation with exposure to allergens is extremely important in correctly making the diagnosis of allergies.

Physical Evaluation

There are certain signs on the physical exam suggesting the presence of allergies. Examples include pale, edematous nasal turbinates within the nasal passages, red, puffy eyes, wheezing and an eczematous rash.

Diagnostic Testing

Allergy testing may be done via skin prick-puncture testing, intradermal testing, or ImmunoCAP laboratory testing.


Upon completing the diagnostic evaluation, a personalized treatment plan will be discussed with the patient that may include environmental modifications, medication treatments, and/or immunotherapy.

How to Test for Seasonal and Indoor Allergies?

Allergy Skin Testing
Prick-puncture and Intradermal testing are allergy skin tests that are performed in the office for the most common indoor and outdoor allergens.
ImmunoCAP Testing
This is a blood test that can also evaluate specific allergies. It detects the presence of an allergic antibody (IGE) specific to a medication.

Treatment for Indoor and Seasonal Allergies

Following diagnostic testing, your allergist will identify treatments fit for you. This may include some or all the treatments below.
Medication Treatments
Allergy medications are often prescribed for patients suffering from seasonal and indoor allergies. The decision of which medication to use depends on one’s symptoms, patient preference, history of adverse effects from the medications and which medications were or were not helpful in the past. Allergy medications are meant to control one’s allergy symptoms and don’t cure allergies.
Allergen Immunotherapy
Allergen immunotherapy, or "allergy shots" are a treatment option for patients with seasonal or indoor allergies. Allergy shots are used to desensitize an individual to specific allergens.
Allergen Avoidance
Environmental modifications are the ideal way to treat seasonal and indoor allergies. See a list of recommended environmental modifications for each type of allergy below.

What is Sinusitis?

Sinuses are air filled spaces within our head that function to lighten the weight of the head, humidify and heat inhaled air, and increase resonance of speech. When the lining of the sinus becomes inflamed, that is called sinusitis. Sinusitis can result from allergies and infections (viruses and bacteria). Sinusitis is often a complication of allergies.

Those individuals with seasonal and indoor allergies are at increased risk of developing sinusitis. With adequate treatment of allergic rhinitis, one can decrease the likelihood of developing sinus infections. Many of the symptoms of sinusitis overlap with the symptoms of seasonal and indoor allergies.

Symptoms of sinusitis can include the following:

  • Green or yellow nasal discharge
  • Pain and tenderness around the cheeks, eyes and forehead
  • Toothaches
  • Bad breath (halitosis)
  • Nasal congestion
  • Headache
  • Reduced sense of smell

What are Nasal Polyps?

Nasal polyps are painless, noncancerous growths lining the nose or sinuses. Symptoms include nasal drainage, severe nasal congestion, facial pressure and pain and decreased sense of smell and taste. Patients with nasal polyps frequently develop sinus infections.

Treatments for Nasal Polyps:

What is Adenoid Hypertrophy?

Adenoid hypertrophy is a medical condition characterized by the enlargement of the adenoid glands, which are located in the back of the nasal passage, near the throat. This condition is most commonly observed in children and can result from chronic inflammation or infection.

Symptoms of Adenoid Hypertrophy:

  • Snoring
  • Mouth breathing
  • Nasal congestion
  • Recurrent ear infections
  • Year-round sinus infections

Seasonal & Indoor Allergies FAQs

Certain individuals have a genetic predisposition to develop allergies. However, environmental exposure also plays an important role in developing allergy symptoms.

Environmental modifications are recommended for seasonal and indoor allergies as a form of avoidance. Click here to see a list of recommended environmental modifications for each type of allergy. If this is not reasonable or does not result in a significant improvement, then medications and/or allergen immunotherapy are considered.

Yes. For example, in some individuals an allergy to dust mites might only cause allergic rhinoconjunctivitis and present with a runny nose, nasal congestion and itchy watery eyes. In other individuals, it might result in atopic dermatitis (eczema).

Ideally, avoidance of a known allergen is recommended. However, we understand people are attached to their pets and often consider them a member of the family. Therefore, other treatment options such as medications and allergen immunotherapy can be considered.

Yes. There is an increased risk of developing asthma if one suffers from seasonal and/or indoor allergies.

No. There are other diagnoses to consider such as sinusitis, nasal polyps, deviated nasal septum, and adenoid hypertrophy.

Explore our seasonal & indoor allergy resources today.