My Allergens

29 allergens from IgE quantitative blood testing. “IgE QN” measures allergen-specific Immunoglobulin E antibodies in the bloodstream (kU/L) — the antibodies your immune system makes against each allergen. Higher values mean stronger sensitization. (Note: IgE is an antibody, not an antihistamine — antihistamines are the medicines that block the reaction.)

⚠ Rye Grass: 100 kU/L⚠ Timothy Grass: 100 kU/L⚠ Johnson Grass: 63.9 kU/L

IgE class scale (kU/L)

<0.35 negative0.35–0.7 low0.7–3.5 moderate3.5–17.5 high17.5–50 very high50–100 very high≥100 extremely high

🌾 Grasses (4)

Rye Grass

Rye Grass

Lolium perenne

100

Class 6 · Extremely High · Late spring to early summer in most of the US

Timothy Grass

Timothy Grass

Phleum pratense

100

Class 6 · Extremely High · Late spring through midsummer

Johnson Grass

Johnson Grass

Sorghum halepense

63.9

Class 5 · Very High · Late spring through early fall

Bermuda Grass

Bermuda Grass

Cynodon dactylon

23.5

Class 4 · Very High · Late spring through early fall (roughly May-September) in most of the South

🌳 Trees (12)

Walnut Tree

Walnut Tree

Juglans spp.

9.61

Class 3 · High · Spring

Olive

Olive

Olea europaea

7.04

Class 3 · High · Spring

Grey Alder

Grey Alder

Alnus incana

6.83

Class 3 · High · Late winter to early spring

Elm

Elm

Ulmus americana

6.33

Class 3 · High · Late winter to early spring

Oak

Oak

Quercus spp.

6.07

Class 3 · High · Spring — roughly February through June depending on latitude

Maple Leaf Sycamore

Maple Leaf Sycamore

Platanus × acerifolia

5.66

Class 3 · High · Spring

Box Elder

Box Elder

Acer negundo

5.41

Class 3 · High · Early to mid-spring

Acacia

Acacia

Acacia spp.

5.13

Class 3 · High · Late winter to early spring

Common Silver Birch

Common Silver Birch

Betula pendula

5.11

Class 3 · High · Spring

Cottonwood

Cottonwood

Populus deltoides

4.79

Class 3 · High · Early spring

Mountain Cedar

Mountain Cedar

Juniperus ashei

2.72

Class 2 · Moderate · Winter

Mulberry

Mulberry

Morus spp.

1.9

Class 2 · Moderate · Spring

🌿 Weeds (7)

English Plantain

English Plantain

Plantago lanceolata

7.6

Class 3 · High · Long season from spring through early fall

Sheep Sorrel

Sheep Sorrel

Rumex acetosella

7.51

Class 3 · High · Late spring through mid-summer

Lambs Quarter

Lambs Quarter

Chenopodium album

5.44

Class 3 · High · Late summer to fall

Common Pigweed

Common Pigweed

Amaranthus retroflexus

5.16

Class 3 · High · Mid-summer through fall

Russian Thistle

Russian Thistle

Salsola tragus

5.05

Class 3 · High · Summer through fall

Mugwort

Mugwort

Artemisia vulgaris

4.64

Class 3 · High · Late summer through fall

Western Ragweed

Western Ragweed

Ambrosia psilostachya

3.22

Class 2 · Moderate · Late summer through fall

🐾 Animals & Dust (3)

Dust Mite

Dust Mite

Dermatophagoides pteronyssinus / D. farinae

24.5

Class 4 · Very High · Year-round

Cat Dander

Cat Dander

Felis catus (Fel d 1)

1.36

Class 2 · Moderate · Year-round (perennial indoor allergen)

Dog Dander

Dog Dander

Canis familiaris (Can f 1)

0.7

Class 2 · Moderate · Year-round (perennial indoor allergen)

🍄 Molds (3)

Aspergillus Fumigatus

Aspergillus Fumigatus

Aspergillus fumigatus (Asp f 1)

0.11

Class 0 · Negative · Year-round

Alternaria Alternata

Alternaria Alternata

Alternaria alternata (Alt a 1)

0.1

Class 0 · Negative · Late spring through first frost

Cladosporium Herbarum

Cladosporium Herbarum

Cladosporium herbarum (Cla h 8)

0.1

Class 0 · Negative · Spring through late fall