Symptom

Allergy symptoms

Allergy symptoms are caused by an overly sensitive reaction of the body's immune system to a substance that would normally be harmless. Such substances are called allergens, and they can include pollen, animal dander, food, medicines or insect stings. In Finland, the most common causes of allergy symptoms are pollen (for example birch and grasses), dust mites, animal dander and certain foods and medicines.

Allergy symptoms can appear in many different ways. The most common symptoms are a runny and stuffy nose, sneezing, itchy and watery eyes, a rash (such as hives), as well as coughing and shortness of breath. In some people, an allergy may cause local swelling, such as angioedema, especially in the face and lips. In rare cases, a sudden and severe anaphylactic reaction can occur, involving widespread rash, swelling and breathing difficulties – in such a case, it is an emergency.

Most allergy symptoms are mild and can be managed with self-care or medicines prescribed by a professional. However, symptoms should always be taken seriously, especially if they worsen quickly, cause breathing or swallowing difficulties, or are associated with widespread swelling. In unclear situations and with severe symptoms, it is important to seek a healthcare professional's assessment quickly.

Practitioners – Allergy symptoms

Frequently asked questions

How do I know whether my symptoms are allergies or a cold?

The symptoms of allergies and a cold can be similar, but allergy symptoms do not usually cause fever and can last a long time. If you are unsure about the cause of your symptoms, it is advisable to seek an appointment with a professional.

Can an allergy cause life-threatening symptoms?

In some cases, an allergy can cause a severe anaphylactic reaction, with sudden swelling and breathing difficulties. In that case, seek emergency care immediately.

How can I relieve allergy symptoms myself?

Allergy symptoms can often be eased by avoiding known allergens and using over-the-counter medicines if needed. If the symptoms continue or worsen, it is good to contact a healthcare professional.

Can an allergy appear in adulthood even if there were no symptoms before?

Yes, allergies can also begin in adulthood. If you develop new symptoms such as a rash, nasal congestion or breathing difficulties, seek a professional assessment if needed.