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Do Allergies Cause Asthma?
Allergies don’t cause asthma. But kids who have allergies, or a family history of allergies, are more likely to get asthma than those who don’t.
And when kids already have asthma, having allergies can sometimes make their asthma symptoms worse.
How Do Allergies Make Asthma Worse?
Lots of kids with asthma have worse asthma symptoms when they’re around allergens (the things that give them an allergic reaction). Common allergens are dust mites, mold, pollen, and animal dander.
When someone has an allergy, the immune system reacts to the allergen like it’s an invader. To fight it off, the immune system makes something called immunoglobulin E (IgE). When IgE mixes with the allergen, chemicals release that are made to protect the body. One of these is histamine. Histamine causes allergic reactions that can affect the eyes, nose, throat, skin, and lungs.
When the airways in the lungs are affected, it can bring on symptoms of asthma (like coughing, wheezing, or trouble breathing).
The body remembers this response, and whenever it comes into contact with the allergen, the same thing can happen. Because of that, allergies can make it hard for some people to keep their asthma under control.
Do Allergies Affect Your Child’s Asthma?
If your child’s asthma isn’t under control, find out if allergies are making it worse. Talk to your doctor, who may refer your child to an allergist for testing.
If it turns out that your child’s asthma is triggered by certain allergens, you’ll want to limit your child’s exposure to them. This can go a long way toward relieving asthma symptoms.
The doctor or allergist may recommend allergy medicine or allergy shots if your child can’t avoid an allergen.

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Lots of kids with asthma have worse asthma symptoms when they’re around allergens (the things that give them an allergic reaction). Common allergens are dust mites, mold, pollen, and animal dander. … Because of that, allergies can make it hard for some people to keep their asthma under control.

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The same substances that trigger your hay fever symptoms, such as pollen, dust mites and pet dander, may also cause asthma signs and symptoms. In some people, skin or food allergies can cause asthma symptoms. This is called allergic asthma or allergy-induced asthma.

Other signs and symptoms of childhood asthma include: Trouble sleeping caused by shortness of breath, coughing or wheezing. Bouts of coughing or wheezing that get worse with a respiratory infection, such as a cold or the flu. … Fatigue, which can be caused by poor sleep.

People are more likely to have asthma if they have the kinds of allergies that affect the nose and eyes, causing problems like a runny nose or red, itchy eyes. Whatever causes an allergic reaction — like pollen — can also trigger asthma symptoms in some people. But not everyone who has allergies develops asthmaWhile it’s not common for food allergies to cause asthma symptoms, food allergies can cause a severe life-threatening reaction in some people. The most common foods associated with allergic symptoms are: Eggs. Cow’s milk.

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