Allergic diseases occur when the immune system reacts to substances that do not normally harm the human body.
Allergies are usually caused by organic substances such as tree and flower pollen, house dust and animal hair. Allergy is not an infectious disease and is not transmitted between people. It can affect not only the respiratory tract but also the eyes, digestive system and skin. Specialists from Memorial Health Group Allergy Diseases Department gave information about allergic diseases.



Allergy is an extreme body reaction of a person to any allergenic substance. People who are prone to allergies are called ‘atopic’. Atopy is not a disease, but an overreaction of the body to certain things and can be inherited. It is more common in people with fair skin and those who live by the sea or in humid environments.

Some substances that are normally harmless to the human body cause various reactions in allergic people called atopic. As a result of an allergic reaction, people experience symptoms such as redness, swelling, inability to breathe, sneezing, nasal discharge, watery eyes, diarrhea, nausea and vomiting in all or part of the body, especially the face.

Everyone may have different areas affected by allergies. Depending on the allergen and where the allergen enters, different areas can be affected by allergies. For example, pollen, when inhaled through the nose, often causes allergic symptoms in the nose, eyes, sinuses and throat. Food allergies often cause stomach or intestinal problems and can bring on urticaria. Allergic reactions can also involve several parts of the body.

The most common time for seasonal allergies is spring. This is the most difficult time for people with seasonal allergies, as tree pollen, grasses, flowers and tea pollen are frequently displaced by the wind. Plant pollen is intensively mixed into the air during the spring season. As the pollen mixes with the air, allergies are seen especially in the eyes and respiratory system during this period.
Frequently Asked Questions About Allergy
1
Pollen density increases especially in March, April and May. The most common sources are trees in spring and grass in late summer.
2
In order to protect against pollen in the spring months, hats and goggles should be worn when going outdoors. During these months when pollen is dense, you should not spend a lot of time outdoors, especially where there are trees and grass, and you should not do sports.
3
House dust mites, which are invisible to the eye, are mostly found in carpets, curtains, mattresses, bedding, bedding, sofas or plush toys. House dust mites cause an increase in allergic rhinitis and allergic asthma.
The areas most affected by allergies can be listed as follows:
Nose, eyes, sinuses and throat: When allergens are inhaled, the release of histamine can cause the nose to produce more mucus, swell and become inflamed. Severe sneezing and itchy nose may also occur. There may also be watery and red eyes and a sore throat.
Lungs: Asthma is a hypersensitivity of the airways to environmental factors. There is swelling of the airways and the mucous membrane lining the airways. This swelling sometimes prevents airflow and causes breathing difficulties. However, asthma is not only caused by allergies; in most cases, allergies play an important role.
Stomach and intestines: Most stomach upsets can be caused by intolerance to foods. However, there is scientific research showing that some foods can cause allergies. Foods that can cause allergies include peanuts, seafood, dairy products and eggs. Sometimes babies can develop cow’s milk allergy, which can cause eczema, asthma, colic and upset stomach. Some people cannot digest lactose (milk sugar). This lactose intolerance also causes stomach upset, but this should not be confused with an allergy.
Skin: Eczema and urticaria are common skin problems. Hives are white itchy bumps that look and feel like insect bites. Food can be a factor in some cases of eczema.
Allergy Posts
The Best Air Purifiers for Allergy Sufferers
Allergies make life tough. Sneezing and itching are common. Indoor air quality matters greatly. Our homes often trap allergens. Pet dander, dust, and pollen hide. Mold spores also float around.[…]
Read moreHow to Manage and Live With Dust Mite Allergies
Dust mites are tiny creatures. They live in our homes often. These microscopic pests cause allergies. Their droppings are the problem. Many people suffer year-round. Symptoms can be quite disruptive.[…]
Read moreHow to Prevent and Manage Symptoms of Mold Allergies
Mold spores are everywhere. They can trigger allergic reactions. Managing these symptoms is key. Prevention also plays a vital role. Don’t let mold impact your health. Understanding Mold Allergies Mold[…]
Read moreSkin Reactions and Allergies: What They Mean
Sometimes a patch of skin turns red. You haven’t changed products or eaten anything new. But irritation begins quietly. Then the color deepens, the area warms, and discomfort spreads. Your[…]
Read moreWhy Your Allergies Might Be Getting Worse
Some people feel like their allergies are getting worse. They haven’t moved or changed their routines. But the body’s responses become stronger. What once caused mild irritation now brings sneezing[…]
Read moreNatural Remedies That May Help with Allergy Relief
Many people notice their symptoms rise with seasonal changes or household triggers. Sneezing becomes constant. Eyes itch. Breathing feels slightly labored. These changes may not need emergency care, but they[…]
Read moreHow to Manage Pet Allergies Without Saying Goodbye
It started with mild symptoms. Sneezing mostly. Some congestion. I thought it was seasonal. Or maybe dust. It got worse slowly. More sneezing. Runny nose. Itchy throat. I didn’t connect[…]
Read moreAllergy Shots vs Sublingual Tablets: Which Is Better?
You don’t begin by asking which works better. You ask which fits your life. The difference isn’t only in science. It’s in schedules, fears, habits. Both aim to retrain your[…]
Read moreUnderstanding Anaphylaxis: Signs and First Response
It doesn’t always start with something dramatic. Sometimes it’s just a tingling lip or itchy throat. Anaphylaxis can begin subtly but escalate within minutes. Recognizing early signs and knowing how[…]
Read more