How allergies develop
- Phase 1
Your immune system reacts to certain substances by producing antibodies known as immunoglobulin E (IgE). This is known as sensitization.
Depending on the type of allergy, such as food or pollen, these antibodies may be found in your airways, including your nose, throat, windpipe and lungs.
- Phase 2
Your body will release inflammatory substances if you are exposed to the allergen again. This causes blood vessels and mucus to dilate, skin to itch, and airway tissues swelling.
The allergic reaction is intended to prevent allergens from entering and to treat any irritation or infection caused by allergens already present. You can consider allergies an overreaction to allergens.
Your body will then respond similarly to the allergen again in the future. You might notice symptoms such as itchy eyes, stuffy nose and puffy eyes in mild cases of airborne allergy. For severe allergies, you may experience hives, diarrhea, difficulty breathing, and even trouble swallowing.
Allergies are common when there is a trigger.
Many people can recall first experiencing allergy symptoms as a child. About 1 in 5 children have asthma or allergies.
Many people find that they can overcome their allergies in their 20s and 30s. This is because they are more tolerant to allergens like milk, eggs and grains.
It is possible to become allergic at any time in your life. It is possible to become allergic to something you have never been allergic to before.
It’s not clear why allergies can develop in adulthood, particularly in the 20s and 30s.
Let’s discuss how and why allergies can occur later in life. How to treat an existing allergy. And whether or not you can expect an existing allergy to disappear with time.
- Common adult allergies
- Allergies to seasonal foods
Seasonal allergies are the most common form of adult-onset allergy. Seasonal allergies can be caused by pollen, ragweed and other plant allergens. These spikes are usually in the spring and fall.
Allergies to pets
Do you have a feline or a canine friend? An allergy can be caused by constant exposure to their dander or skin flakes. Also, chemicals in urine and saliva can get on the dander.
Allergies to food
Nearly 11% of Americans have some form of food allergy. Nearly half of those with symptoms report experiencing them in adulthood, particularly for certain types of fish.
- Peanuts, tree nuts, and pollen are other common food allergens for adults.
- Many children suffer from food allergies. As they age, their symptoms become less severe.
Why is this happening?
It’s not clear why allergies may develop in adulthood.
Researchers believe that an allergic reaction in childhood can lead to more severe allergies later on, even one episode.
These links can be seen in some cases and are known as the “atopic march”. As they age, children with food allergies and skin conditions such as eczema might develop symptoms like sneezing or itching.
The symptoms may then disappear for a time. These symptoms may return in your 20s and 30s if you are exposed to an allergen. You might be allergic to the following:
When your immune system function has been compromised, you may be exposed to allergens. This can happen if you are sick, pregnant, or have an illness that affects your immune system.
As a child, you may have had very little contact with an allergen. It is possible that you have not been exposed to enough allergens to cause a reaction by the time you reach adulthood.
Moving to a new place or work environment can introduce new allergens. You might be exposed to plants or trees you have never been before.
- The first time you have a pet. This can also occur after a long time of not having pets.
- Are allergies possible to disappear with the passage of time?
- The short answer to your question is “Yes.”
Even if you have allergies as an adult you might notice that they disappear when you are in your 50s.
This is because as you age, your immune function decreases and so your immune response to allergens becomes less severe.
You may experience some of the same allergies as your child, but they might disappear when you are a teenager and into adulthood.