It would seem that the presence of a dog in the limit domicile the development of allergic diseases. Indeed, fact to have a dog would diminish the appearance of sensitivity in respiratory allergens as pollens.

In case of allergy, ousting of allergens

The solution which is obvious to the allergic persons is to evict one or several allergens to which they are sensitive. If it is sometimes possible to limit them, it is on the other hand impossible to eliminate a big quantity of respiratory allergens: pollens, dusts, tobacco, hair of animals, etc. and treatments are sometimes necessary.

Prevention of allergy, recommendations which evolve

Traditionally, to limit the development of an allergy, some measures were recommended: no animals in the room, no carpet, no picnic nor of promenade in the campaign during the pollen peaks, no exhibition in passive tobacco addiction, etc. Some of these measures are called into question, notably the presence of an animal in the domicile.

The presence of a dog diminishes sensitivity in other respiratory allergens

Concerning domestic animals, knowledge advanced. To limit the development of allergies, it was recommended for a long time to avoid having animals with hair, dogs and chats. It would seem that the dogs are not harmful, or even rather advantageous.
In this German study, 3.000 children were followed by birth until the age of 6 years. Their living conditions and their contacts with various allergens were analysed with the aid of questionnaires filled by the parents. A relation was so highlighted: fact to have a dog at home diminishes the sensitivity of the children in other respiratory allergens. So, the children who live with a dog are less sensitive to pollens and to other inhaled allergens.
He is even too early to recommend a dog in all homes, where from necessity to follow studies in this direction.

Domestic animals are advantageous to all family

Undoubtedly, domestic animals are likely to bring in term of health to their master and to all family a lot. The dogs, particularly, give a company on which it is possible to count any time, what reinforces morale, they impose you daily promenades, what makes make physical activity, and diminish risks of respiratory allergy.

You have tendency to sneeze every pollen season for example? It is indeed about a rhinitis, but symptoms do not bother you still enough to go to consult your doctor. It is a fault, because you have 3,5 times more risks of developing an asthma later.

Allergic rhinitis corresponds to a hypersensitivity in allergens (dusts, pollens, dust mites, mildew, hair of chat) which is translated by a nose which runs, of frequent and repetitive sneezes, a blockage and/or nasal itches.
The similarity of both diseases, rhinitis and asthma, led the researchers to analyse their relations.
Indeed, rhinitis and asthma correspond to an excessive immune reaction contrary to a present allergen in air. Concerning rhinitis, this reaction touches only the upper air routes: the nose, the mouth and the pharynx, where from the classical symptoms (nose which runs or blocked, sneezes). In the case of asthma, immune reaction touches lower respiratory tract (bronchuses, pulmonary alveoli, etc.) and draw away a reduction of the vital capacity, embarrassing, disabling and dangerous.

In the course of this study, about 6.500 persons native to 14 European countries and from 20 to 44 years old were followed during 9 years. While all participants were unharmed of any episode of asthma at the time of recruitment, they note that the persons who are attained of an allergic rhinitis see their risk of developing an asthma multiplied by 3,5 in comparison with those who do not make rhinitis. Non-allergic rhinitis also constitutes a predictive factor of asthma, since subjects attained by this affection have 2,7 times more risks of becoming asthmatic.

The relation between rhinitis and asthma is very strong. It is probable that after the inhalation of allergens, the nasal inflammation favours the migration of the inflammatory mediators in the circulation of the blood and in cloths, and notably at the level of bronchuses.

Diagnose rhinitis to control asthma

It is therefore important to diagnose a rhinitis to reinforce surveillance and to deflect an easier, starting asthma to be controlled. On the other hand, maintain that the treatment of rhinitis allows to tell or to postpone the happening of an asthma am premature. However, they know that to treat rhinitis allows to control better the symptoms of asthma at the asthmatic persons.
Anyhow, it is necessary to remember that it is important to control asthma because it is a serious illness.

Why is the allergy to the dust mites more frequent in autumn and in winter? How does she manifest itself? How to eradicate this million microscopic animals whom are the dust mites?

Why is the allergy to the dust mites more frequent in autumn and in winter?

The dust mites proliferate all year long in our houses. But they have a predilection as hot places and humid. That’s how they proliferate in pillows, mattresses, carpets, chairs, fuzz And more intensely in autumn and in winter, when the time is humid and that our accommodation is heated well and is less aired.

How manifests itself the allergy to the dust mites?

The dust mites are involved in respiratory diseases, but also in skin disorders and oculars.

The most classical answer is allergic rhinitis: nose which runs, repeating sneezes, itches, etc.

The dust mites can also launch allergic rhino-conjunctivitises: besides the symptoms of allergic rhinitis, watering of the eyes, redness and prickle of eyes.

Finally, all these reactions are at the origin of sleep troubles and of tiredness which draw away a deterioration of the quality of life and of disabilities in the daily.

How to eliminate the dust mites?

Too much do not heat his accommodation: 19-21°C and 16-18°C in the room.

Limit the rate of humidity to 50 % maximum.

Air the room regularly every day, or even several times a day by dry time.

Ban moquettes, carpets, chairs in cloth, and other nests with dusts and with dust mites.

Cover the mattresses of dust covers anti-dust mites.

To treat the symptoms of allergy to the dust mites, it is necessary to consult his doctor, ideally an allergist, who will assess opportunity to accomplish a desensitizing to the dust mites.

In the past, the desensitizing of the persons attained by allergy, notably by allergic rhinitis, imposed series of injections. Since a dozen years, it is enough to deposit drops under the language . A true revolution in the treatment of allergic rhinitis! What are the key points to be known?

1) At the persons who suffer from allergic rhinitis, the sublingual desensitization way reduces symptoms and use of medicaments. The symptoms of rhinoconjunctivitis are diminished about 37 %, the nasal blockage of 59 % and 50 % watering of the eyes (1).

2) The improvement of symptoms is supported several years after sublingual desensitizing. But it is necessary to know that the relapse will be all the more precocious as the length of desensitizing was short.

3) It is especially efficient in case of allergy in pollens, but also used in case of allergy in dusts of home and in dust mites.

4) Before undertaking a desensitizing, it is necessary to assess allergy to identify the allergen in reason.

5) Desensitizing risks being ineffectual in case of poly sensibilisation. She contacts therefore allergic subjects in a specific allergen.

6) The sublingual desensitization way is tolerated well and seldom requires a stopping of the treatment. The most common reactions are local, they happen principally at the beginning of treatment and are of light intensity in moderate: buccal edema, oral pruritus(itches), edema of the language, annoyance of the throat and sometimes prurit ocular.

7) To the asthmatic, the results of desensitizing are more modified (2). Nonetheless, an improvement of symptoms (bronchial hyperreactivity) is got.