Alternaria
Common outdoor mold found in soil, plants, and decaying vegetation. One of the most common outdoor mold allergies.

Hormodendrum (Cladosporium)
Often called Cladosporium mold. Found on plants, wood, fabrics, and indoor surfaces. Very common airborne mold.

Aspergillus
Common indoor and outdoor mold found in dust, air vents, stored grain, and damp buildings.

Helminthosporium
Often associated with grass and plant molds, commonly found in lawns, soil, and agricultural areas.

Penicillium
Common indoor mold found on water damaged materials, carpets, wallpaper, and food. Related to the mold that produces penicillin.

Why tested:
Common airborne molds that grow in warm, humid climates and indoors. They frequently trigger year round allergy symptoms such as congestion, coughing, and sinus irritation.

Dust Mite Mix
Microscopic organisms that live in bedding, mattresses, pillows, carpets, and upholstery. They feed on shed human skin cells and are one of the most common causes of year round indoor allergies.

Cockroach Mix
Proteins from cockroach droppings, saliva, and body fragments can trigger allergies and asthma. These allergens can remain in household dust even when cockroaches are not visible.

Why tested:
These allergens are common inside homes and buildings and can cause persistent symptoms year round, including nasal congestion, sneezing, sinus pressure, and asthma flare ups.

Cat
Allergens come from proteins in a cat’s skin flakes (dander), saliva, and urine. These particles are very small and can stay airborne for long periods.

Dog
Dog allergies are caused by proteins found in dander, saliva, and hair. These allergens easily collect in carpets, furniture, and clothing.

Horse
Horse allergens come from dander, hair, and sweat proteins. Reactions are more common in people who spend time around ranches, farms, or stables.

Why tested:
Animal dander is a very common indoor allergy trigger and symptoms can occur even without direct contact since these particles spread easily through the air and on clothing.

Mountain Cedar
A major winter allergy trigger in Texas, often responsible for what many people call “cedar fever.”

White Ash
A tree that releases pollen in early spring and can trigger seasonal allergy symptoms.

Boxelder / Maple Mix
Related trees that produce airborne pollen during the spring months.

Cottonwood
Common along rivers and neighborhoods. Produces pollen in spring that can irritate sensitive individuals.

Elm
A widespread shade tree that releases pollen in late winter and early spring.

Hackberry
A very common Texas tree that produces airborne pollen during spring.

Mesquite
Native to South Texas and northern Mexico. Its pollen is a frequent regional allergy trigger.

Mulberry
Produces airborne pollen in the spring and is known to cause seasonal allergy symptoms.

Oak
One of the most common pollen producing trees in Texas during spring.

Pecan
Common in Texas landscapes and orchards. Releases pollen that can trigger allergies in spring.

Why tested:
Tree pollen is one of the largest seasonal allergy triggers in South Texas, especially during late winter and spring when many regional trees release large amounts of airborne pollen.

Bermuda Grass
One of the most common lawn grasses in Texas. Produces significant pollen during late spring and summer.

Johnson Grass
A widespread wild grass in fields, roadsides, and open areas across South Texas.

Standard Perennial Rye
A common turf and pasture grass that releases pollen during the growing season.

Why tested:
Grass pollen is a major cause of spring and summer seasonal allergies. Bermuda and Johnson grass are especially widespread in South Texas and frequently trigger symptoms like sneezing, itchy eyes, and congestion.

Ragweed
One of the most common fall allergy triggers. Ragweed plants release large amounts of pollen that travel easily through the air.

Carelessweed / Pigweed
A common weed in Texas fields and roadsides that produces allergenic pollen in late summer and fall.

Dock / Sorrel
Weeds commonly found in grassy areas and disturbed soil that release airborne pollen.

Russian Thistle
Often known as tumbleweed, this plant releases pollen that can trigger seasonal allergies.

Sagebrush / Mugwort
Weeds that produce airborne pollen in late summer and fall and are known allergy triggers in many regions.

Why tested:
Weed pollen is a major source of late summer and fall allergies, especially in South Texas where these plants grow widely in open land and roadside areas.