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

The panic attack - Diseases
Diseases

The panic attack

The panic attack is not a pathology in itself but a transitory psychic state. It constitutes a moment of intense and short terror triggered by a stimulus not always identified. Its repetition can induce anxiety between crises. Classically, panic attacks or acute attacks of anxiety occur suddenly and for no apparent reason
Read More
Rectal cancer: the symptoms - Diseases
Diseases

Rectal cancer: the symptoms

Rectal cancer is first manifested by digestive symptoms, particularly transit, exoneration, and bleeding disorders. The patient suffers from constipation or diarrhea or alternating diarrhea-constipation. The difficulties of exemption vary according to the location of the tumor. As for bleeding, we speak of rectorragies, that is to say of red blood or mucus covering the stool or visible on the toilet paper at the end of exemption
Read More
Compulsive Shopping: Sources and Notes - Diseases
Diseases

Compulsive Shopping: Sources and Notes

Lejoyeux M, Weinstein A. Compulsive Buying, The American Journal of Drug and Alcohol Abuse 2010; 36: 248-253 Lejoyeux M, Mathieu K, Embouazza H, Huet F., Lequen V. Prevalence of compulsive buying among customers of a Parisian general store. Compr Psychiatry 2007; 48: 42-46 Boutin G. I buy (too much) and I like it
Read More
Atherosclerosis: sources and notes - Diseases
Diseases

Atherosclerosis: sources and notes

> French Federation of Cardiology and Foundation for Medical Research. > Libby, Inflammation in atherosclerosis. Nature, 2002, 420, 868-874. > T Edgui et al, Anti-inflammatory mechanisms in the vascular wall. Circ Res, 2001, 88, 877-887.
Read More