Environmental Allergies in San Antonio, TX

Seasonal pollen and year-round indoor allergens can cause recurring symptoms in San Antonio. AllergySA evaluates environmental allergies in children and adults. Our board-certified allergists review your symptoms and recommend treatment based on the findings. 

What Are Environmental Allergies?

Environmental allergies occur when the immune system reacts to substances in the air or in your surroundings that are usually harmless. These substances are called allergens. Common examples include pollen, mold spores, dust mites, and pet dander.

Some environmental allergies are seasonal. Others cause symptoms throughout the year. When and where symptoms occur can offer clues. Your allergist will decide whether testing would help identify the triggers.

Common Environmental Allergens in San Antonio

South Texas pollen seasons can overlap. Mountain cedar, oak, and ragweed affect patients at different times of year. Mold, which can be found both indoors and outdoors, may trigger symptoms year-round, while dust mites and pet dander are common sources of persistent indoor allergies.

Pollen Allergies

Tree, grass, and weed pollens are common causes of seasonal allergies. In San Antonio, mountain cedar pollen may appear as early as November, with many patients noticing their worst symptoms in December, January, and February. Oak pollen is another common local trigger in spring, while ragweed pollen can affect patients from late summer into fall.

Pollen is light enough to travel through the air and can collect on clothing, hair, shoes, pets, and outdoor furniture, causing some symptoms to continue even when the plants producing the pollen are not growing near your home.

Pet Dander Allergies

Pet allergies are caused by proteins found in an animal’s skin flakes, saliva, and urine. These allergens can remain in the air and settle on furniture, carpets, bedding, and clothing. Symptoms may occur even in places where a pet is not currently present because the allergens can be carried from one location to another.

Dust Mite Allergies

Dust mites are microscopic organisms commonly found in bedding, carpets, mattresses, and upholstered furniture. They are a frequent cause of year-round nasal allergy symptoms. People with a dust mite allergy may notice more congestion, sneezing, or coughing while sleeping, cleaning, or spending time indoors.

Mold Allergies

Mold releases microscopic spores that can trigger nasal, eye, and breathing symptoms. Warm, humid conditions in South Texas can support mold growth outdoors and inside damp areas of a home or building. Indoor sources may include bathrooms, window areas, plumbing leaks, or places with high humidity or water damage.

Reducing moisture is an important part of mold control. If mold covers a large area or is connected to significant water damage, professional remediation may be needed.

Environmental Allergy Symptoms

Environmental allergies can disrupt sleep or daily activities. Common symptoms include:

• Sneezing
• Runny, stuffy, or itchy nose
• Itchy, watery, or red eyes
• Postnasal drip or throat irritation
• Cough
• Sinus or head pressure
• Fatigue related to poor sleep
• Wheezing, chest tightness, or shortness of breath in people with allergic asthma

Allergy symptoms can resemble a cold or sinus problem. Symptoms that return during the same season or around certain exposures can suggest an allergy, especially when itching is present.

Call 911 for severe breathing difficulty. Recurring wheezing or chest tightness should be discussed with your physician.

How Are Environmental Allergies Diagnosed?

Your allergist reviews your symptoms and medical history and examines you. You’ll discuss when symptoms appear, possible exposures at home or work, and what seems to help or make them worse.

Testing is interpreted together with your history and exam. A positive test alone does not always explain your symptoms, so your allergist looks for a clear connection between the result and your symptoms.

If allergy testing is recommended, skin prick testing is commonly used. Small amounts of allergen extracts are placed on the skin, usually on the back, and gently introduced into the surface with a plastic prick device. Results are generally available in about 15 to 20 minutes. The allergens tested are selected based on your history.

Blood testing may be recommended when skin testing is not appropriate, including for some patients with certain skin conditions, medications, or a higher risk of reactions. If coughing, wheezing, or shortness of breath is part of the picture, lung function testing may also be considered.

Environmental Allergy Treatment

Treatment depends on your triggers, symptom pattern, health history, and how much the symptoms affect your daily life. Your plan may include:

• Practical steps to reduce exposure to identified allergens
• Antihistamines, nasal sprays, eye drops, or other medication guidance
• Asthma treatment when environmental allergens affect breathing
• Allergy immunotherapy for eligible patients who want long-term control

Avoidance steps should be specific to your triggers. For pollen, that may include checking local pollen counts, keeping windows closed when counts are high, and changing clothes after extended outdoor activity. For indoor allergens, recommendations may focus on bedding, humidity, cleaning practices, pets, or moisture control.

Allergy Immunotherapy

Allergy immunotherapy gradually exposes the immune system to controlled amounts of the allergens causing your symptoms. Over time, this may reduce sensitivity and provide longer-term relief for people with environmental allergies or allergic asthma.

AllergySA offers allergy shots and allergy drops for appropriate patients. Allergy shots are given in the office on a regular schedule. Allergy drops are placed under the tongue at home. Your allergist will review your testing results, symptoms, medical history, and schedule to determine whether immunotherapy is appropriate and which option may fit your needs.

Environmental Allergy Specialists in San Antonio

AllergySA has served South Texas for more than 30 years. Our board-certified allergy specialists care for adults and children with seasonal and year-round allergies, asthma, and related conditions. Patients can receive allergy testing, treatment planning, and ongoing care at our Medical Center and Southside locations in San Antonio.