Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or a food that doesn't cause a reaction in most people. Your immune system produces substances known as antibodies. When you have allergies, your immune system makes antibodies that identify a particular allergen as harmful, even though it isn't. When you come into contact with the allergen, your immune system's reaction can inflame your skin, sinuses, airways or digestive system. The severity of allergies varies from person to person and can range from minor irritation to anaphylaxis — a potentially babeis emergency. While most allergies can't be cured, treatments can help relieve your allergy symptoms.
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Allergies - Symptoms and causes - Mayo Clinic
While most allergies can't be cured, treatments can help relieve your allergy symptoms. Allergy symptoms, which depend on the substance involved, can affect your airways, sinuses and nasal passages, skin, and digestive system. Allergic reactions can range from mild to severe. In some severe cases, allergies can trigger a life-threatening reaction known as anaphylaxis. Atopic dermatitis, an allergic skin condition also called eczema, can cause skin to:.
Some types of allergies, habies allergies to foods and insect stings, can trigger a severe reaction known as anaphylaxis.
A life-threatening medical emergency, anaphylaxis can cause you to go into shock. Signs and symptoms of anaphylaxis include:.
Allergy Symptoms in Children | Ask Dr Sears
You might see a doctor if you have symptoms you think are caused by an allergy, and over-the-counter allergy medications don't provide enough relief. If you have symptoms after starting a new medication, call the doctor who prescribed it right away.
For a severe allergic reaction anaphylaxiscall or your local emergency number or seek emergency medical help. If you carry an epinephrine auto-injector Auvi-Q, EpiPen, othersgive yourself a shot right away. Even if your symptoms improve after an epinephrine injection, you should go to the emergency department to make sure symptoms don't return when the effects of the injection wear off.
If you've had a severe allergy attack or any signs and symptoms of anaphylaxis in the past, make an appointment to see your doctor.
Evaluation, diagnosis and long-term management of anaphylaxis are complicated, so you'll probably need to see a doctor who specializes in allergies and immunology. An allergy starts when your immune system mistakes a normally harmless substance for a dangerous invader.Colds vs. Allergies. This is the time allergic rashes tend to appear. The most common allergic rash is atopic dermatitis, or eczema, and for many babies it's the first warning sign of allergic tendencies. Eczema is a red, scaly, and sometimes oozing rash on baby's cheeks, torso, arms, and legs. And while most experts don't think children can be allergic to tobacco smoke, it can certainly make their allergic symptoms worse. 10 signs that your child has allergies, not a cold Because the symptoms of nasal allergies are much like cold symptoms – runny nose, watery eyes, cough, nasal congestion, sneezing – it can be tough to tell the difference. Respiratory Allergies. Fall Allergies Ragweed, mold and dust mites are the biggest allergy triggers in the fall. Winter Allergies If you have indoor allergies such as mold and dust mites, you may notice symptoms more during winter, when you spend more time inside. Hay Fever Hay fever, also known as allergic rhinitis.
The immune system then produces antibodies that remain on the alert for that particular allergen. When you're exposed to the symptoma again, these antibodies can release a number of immune system chemicals, such as histamine, that cause allergy symptoms. Preventing allergic reactions depends on the type of allergy you have.
Milk allergy - Symptoms and causes - Mayo Clinic
General measures include the following:. Mayo Clinic does not endorse companies or products.
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This content does not symotoms an Arabic version. Overview Allergies occur when your immune system reacts to a foreign substance — such as pollen, bee venom or pet dander — or a food that doesn't cause a reaction in most people.
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