Allergens are natural components of the environment. The identification of the sources of allergens responsible for symptoms is a required precondition for introducing advice and specific treatment.

Several hundred sources allergens have been identified, which may be seasonal or perennial (which last throughout the year).

Seasonal

• Pollens and plant sources of allergens: examples

o  Grass pollen: Dactylis (Cocksfoot or orchard grass), Timothy grass

o  Tree pollen: Birch, Cypress

o  Weed pollen: Ragweed , Pellitory-of-the-Wall (Parietaria officinalis)

 

 

Perennial

• Mites: examples

o   House dust mites 

o   Storage mites 

• Animal dander: examples

o   Cats 

o   Dogs

• Molds and yeasts: examples

o   Alternaria alternata

• Food allergens

Hymenoptera venom: examples

• Bee
• Hornet
• Common wasp
• Paper wasp