Diseases

Pollen allergy: the causes

The presence of pollen in the air we breathe is the cause of allergy to pollen.

Allergy is a defense reaction of the body against a substance that normally is harmless. In case of allergic reaction, the body will release chemical mediators that generate a kind of inflammatory reaction. Thus, in the case of pollen allergy, when this substance comes into contact with the respiratory mucosa, it can cause irritation and allergies in susceptible persons.

If the allergic person comes into contact with the pollen in the air, the airways (nose, larynx, bronchi) in contact with the inhaled air will be affected by the allergic reaction.

Some people who are allergic to pollens may have different reactions when eating raw fruits or vegetables: Quincke's edema, itching of the mouth ... We can then talk about cross-allergies.

This is due to the fact that some pollen and some foods have all - or some - of their structure that is identical. For example, an allergic to birch pollen will not be able to eat apples or celery. A person allergic to grass pollen, can no longer eat tomatoes or peppers ....

True / False on the hikes

What is a respiratory allergy? At what age can we develop an allergy? Is it hereditary? Can we prevent an allergy? The essentials about allergies in 19 questions!

Want to react, share your experience or ask a question? See you in our FORUMS Allergy or A doctor answers you!

To read also our files on the various allergies:

> Milk allergy
> Lactose intolerance
> Allergy with cat hair
> Mite allergy

Popular Posts

Category Diseases, Next Article

Rabies: The diagnosis - Diseases
Diseases

Rabies: The diagnosis

Prior to rabies reporting , it is difficult to make a definitive diagnosis : it is theoretically possible to demonstrate the presence of the rabies virus by microscopic examination of a saliva, cerebrospinal fluid or still hair follicles. But this proof can not always be provided, even if there has been contagion
Read More
Rhinitis: it's not just allergic rhinitis! - Diseases
Diseases

Rhinitis: it's not just allergic rhinitis!

If spring is synonymous with renewal, beautiful days ahead, it is for some people the beginning of a rather difficult period that rhymes with hay fever and rhinitis. The term rhinitis describes inflammation and irritation of the mucous membranes of the nasal cavity. Rhinitis can be a seasonal disease, but it can also rage throughout the year depending on the allergic mechanism (mites, animal hair
Read More
My baby is allergic to cow's milk - Diseases
Diseases

My baby is allergic to cow's milk

Your baby has a stomach ache, crying at the time of bottle feeding, it may be the symptom of an allergy to cow's milk proteins ... But it also happens that the reaction is particularly severe. Milk is one of the main allergens in children between one and three years old. To learn more about this little known disease, understand why your baby is allergic to cow's milk, and know the different solutions, here is our article written with a pediatrician
Read More