Acarids
Aeroallergen
Allergens
Allergic reactions
Anemophilous pollens
Anti-leukotriene
Antibodies
Antihistamine
Atopic
Bronchodilator
Congestion
Conjunctivitis
Corticosteroid
Dermatitis
Desensitisation
Dyspnoea
Eczema
Erythema
Graminaceae
Hayfever
Herbaceous
Histamine

Histamine

One of the chemical substances involved in the inflammatory reaction and which is responsible for certain allergic symptoms.