what is an allergy and it's pahology

ALLERGY

Hello subscribers in this blog I’m going to write about what is allergy and how the allergy will come what are the types of allergy and what are the pathological changes occur in body when allergy occur

What is allergy?

                        Which damage the immune system in the body due to a substance such as pollen, dust, food, and it makes our body hypersensitive. It is chronic condition, which means the disease can last up to 1 year or more and it require ongoing medicines.

Symptoms of allergy are red eyes, sneezing, shortness of breath, rashes, itching…etc…

Allergy is caused by environment and genetic factors.

IgE is in a human body immune system it increases when our body gets hypersensitivity to the environment. It releases the histamine (inflammatory chemicals) due to binding of allergen to a receptor or mast cells or basophiles.

Allergy caused as:

They are many risk factors for allergy it can be described as host and environment. In host the allergy will come by heredity, race, age, and sex. The environmental factors are infectious disease, pollution, dietary changes and allergen levels.

The major type of allergy may caused as

Food allergy:

            Most of the people cause allergic reactions are due to the food such as cow’s milk, eggs, wheat, peanuts and fish…etc… milk – protein is the most common in children and it is mediated with Immunoglobulin E and cause inflammation of colon.

Pathology

 In early stage of allergy type I hypersensitivity (immediate) react against an allergen which can cause by exposure. Exposure may be ingestion, inhalation, injection or direct contact. this reaction is mediated by IgE antibodies and it causes acute inflammatory responses. The symptoms may include systemic and local. [If you don’t know about systemic and local signs don’t worry I will write here

Systemic signs which affect whole body or multiple organs not an area of a body. Examples: flu, high blood pressure, fever, vomiting, nausea, fatigue.

Local signs which affect in an area and does not affect whole body. Examples: redness (rubor), heat (calor), swelling(tumor), loss of function(munus amsi).]

Types of allergy:

·       Drug allergy : when a person have an abnormal reaction of immune system to a medication then that person have drug allergy

·       Food allergies: when person immune system reacts or if he have unpleasant for a certain food then the person having food allergy

·       Contact dermatitis: if a person get skin rashes by contact with a certain substance.

·       Animal allergy

·       Allergic rhinitis

·       Asthma allergy

Here I haven’t written all types I will give the reference you can read in that website all about allergy.

Conclusion:

In this blog I have said about allergy and types of allergy and pathological types of allergy. If you liked this blog please support us follow and share this post. If they are any mistakes feel free to comment I will try to improve it.