Sudden Allergies: Why Did They Appear Out of Nowhere?

Why do I have allergies now when I didn't have them before?

I have never had allergies before, but suddenly in mid-May, I started experiencing severe nasal congestion.
I thought it was just a mild allergy, so I ignored it.
Now, two months have passed, and it is still just as severe.
I went to a large hospital, and the doctor said it is an allergy.
I know that allergies are very common in Taiwan, but why did it suddenly happen like this? The doctor suggested taking medication for a week, and if there is no improvement, we would need to consider another solution, such as laser treatment.
I have researched online, and many people who have undergone laser treatment say it does not address the root cause.
So, what should I do at this point? Thank you!

Ting, 20~29 year old female. Ask Date: 2007/07/11

Dr. Wu Wenqiu reply Pulmonology

Hello Ting, allergies are immune system disorders that mostly occur due to an allergic constitution.
When exposed to allergens, it triggers a reaction in individuals with this predisposition.
Upon subsequent exposure to the same allergens, symptoms arise.
Therefore, after a physician confirms an allergic condition, the most important treatment is to identify the allergens and avoid them to achieve a long-term solution.
In clinical practice, patients often experience relapses with laser treatments, so it is advisable for you to consult a specialist to identify the allergens and pursue fundamental treatment for your allergic condition.

Reply Date: 2007/07/11

More Info

Sudden allergies can be perplexing, especially when they appear seemingly out of nowhere. It's not uncommon for individuals to experience new allergic reactions later in life, even if they have never had allergies before. Allergies are the result of the immune system's response to substances (allergens) that it mistakenly identifies as harmful. These allergens can include pollen, dust mites, pet dander, mold, certain foods, and even insect stings.

In your case, the sudden onset of severe nasal congestion in mid-May suggests that you may have been exposed to a new allergen or an increased level of a known allergen. Seasonal allergies, often referred to as hay fever or allergic rhinitis, are particularly common during spring and summer months when pollen levels are high. If you live in an area with a lot of vegetation, it’s possible that tree, grass, or weed pollen could be the culprit. Additionally, indoor allergens like dust mites or mold can also trigger symptoms, especially if there have been changes in your living environment.

The fact that your symptoms have persisted for two months indicates that this is not a temporary reaction. Chronic allergic rhinitis can lead to significant discomfort and may require a more comprehensive treatment plan. Your doctor’s recommendation to start medication for a week is a common first step. Antihistamines, nasal corticosteroids, and decongestants are often prescribed to alleviate symptoms. However, if these medications do not provide relief, further evaluation may be necessary.

Regarding the mention of laser treatment, it’s important to understand that while certain laser procedures can help with specific types of allergies, they do not address the underlying cause of allergic reactions. Laser treatments may be used for conditions like nasal polyps or to reduce the size of turbinates in the nose, which can improve airflow and reduce congestion. However, they do not eliminate the allergy itself.
If your symptoms persist despite medication, you may want to consider seeing an allergist for further evaluation. An allergist can perform tests to identify specific allergens that may be triggering your symptoms. Skin prick tests or blood tests can help pinpoint the exact substances you are allergic to, allowing for a more targeted approach to treatment.
In addition to medical treatment, there are lifestyle changes you can make to help manage your allergies. These include:
1. Avoidance: Try to identify and avoid allergens that trigger your symptoms. For example, if pollen is a trigger, stay indoors on high pollen days and keep windows closed.

2. Air Quality: Use air purifiers with HEPA filters in your home to reduce indoor allergens. Regular cleaning can also help minimize dust and pet dander.

3. Nasal Irrigation: Saline nasal sprays or rinses can help clear allergens and mucus from your nasal passages, providing relief from congestion.

4. Immunotherapy: If your allergies are severe and persistent, you might consider allergy shots (immunotherapy). This treatment gradually desensitizes your immune system to specific allergens over time.

In conclusion, while sudden allergies can be frustrating and disruptive, there are effective strategies and treatments available. It’s essential to work closely with your healthcare provider to find the most suitable approach for your specific situation. If your symptoms continue to interfere with your daily life, don’t hesitate to seek further medical advice.

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