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Allergies are problems of the immune system. Most allergic reactions happen when the immune system reacts to a “false alarm.” Normally, the human body defends itself against harmful things, such as viruses or bacteria. But sometimes the defenses violently attack mostly mild things, such as dust, mold, or pollen.
The immune system makes large amounts of the antibodies called immunoglobin E (IgE). This is a complex chemical weapon that attacks and kills the “enemy.” Each IgE antibody exactly targets a certain allergen or thing that causes the allergy. In this way, inflammatory chemicals, such as histamines, cytokines, and leukotrienes, are made and given off. This causes the person to feel some bad or even life-threatening symptoms.
Allergens are substances that can be breathed in, swallowed, or come in contact with the skin. Common allergic reactions, such as hay fever, certain types of asthma, and hives, are linked to an antibody made by the body. This antibody is called immunoglobulin E or IgE. A person can be allergic to one type of pollen, but not another. When a sensitive person is exposed to an allergen, the body starts making a large amount of matching IgE antibodies. When the person is exposed to the same allergen at a later point, he or she may have a reaction. Symptoms of an allergic reaction will differ based on the type and amount of allergen you have come in contact with. It also depends on how the body’s immune system reacts to that allergen.
The most common allergens are:
Allergies can affect anyone, no matter what age, gender, race, or socioeconomic status. Often, allergies are more common in children. But a first-time event can happen at any age, or come back after many years of remission.
There’s a tendency for allergies to happen in families. Although the exact family links that cause it aren’t yet understood. In sensitive people, things such as hormones, stress, smoke, perfume, or other environmental irritants, may also play a role. Often, the symptoms of allergies grow slowly over a period of time.
Allergy sufferers may become used to constant symptoms, such as sneezing, nasal congestion, or wheezing. They may not think that their symptoms are unusual. These symptoms can often be stopped or controlled with the help of an allergist. And the person can have a better quality of life.
An allergic reaction can happen anywhere in the body. This includes the skin, eyes, lining of the stomach, nose, sinuses, throat, and lungs. These are the places where immune system cells are found to fight off germs that are in breathed in, swallowed, or come in contact with the skin. Allergic reactions can cause:
To diagnose an allergy, your health care provider will give you an exam and take your medical health record. He or she may also do these tests.
Your health care provider will figure out the best treatment for you based on:
The symptoms of allergy sometimes look like other conditions or medical problems. Always see your health care provider for a diagnosis.
Allergy shots or immunotherapy and medicine are effective ways treat allergies.
Allergy shots. Allergy shots or immunotherapy is a type of treatment for allergic patients with rhinitis (hay fever), conjunctivitis, or asthma. It is also used for patients with a stinging bug allergy. A mixture of the many allergens to which the patient is allergic is made. It is injected into the patient’s arm on a weekly basis until a maximum dose is reached.
Most patients get better with allergy shots. It often takes from 12 to 18 months before clear reduction in allergy symptoms is noticed. In some patients, a reduction in symptoms is evident in as soon as six to eight months.
Allergy shots are only part of the treatment plan for allergic patients. Since it takes time for allergy shots to become effective, you will need to stay on the allergy meds, as prescribed by your heath care provider. It is also important to keep on getting rid of allergens (such as dust mites) from your surroundings.
Medicine. For people who suffer from allergies, there are many medicines that work well. Antihistamines are used to calm or stop the symptoms of allergic rhinitis (hay fever) and other allergies. Decongestants are used to treat stuffiness in the nose and other symptoms linked to colds and allergies. The use of medicines for asthma or breathing symptoms from allergies is tailored for each person based on the severity of the symptoms.
Talk with your health care provider for more information about allergy medicines.
Anaphylactic shock or anaphylaxis can happen in extreme cases. Anaphylaxis is a serious, life-threatening reaction to certain allergens. Body tissues may swell, including tissues in the throat. Anaphylaxis can also cause a sudden drop in blood pressure. These are the most common symptoms of anaphylaxis. However, each person may feel symptoms differently.
Other symptoms may include:
Anaphylaxis can be caused by an allergic reaction to a drug, food, serum, bug venom, allergen extract, or chemical. Some people who are aware of their allergic reactions or allergens carry epinephrine. This is a drug that fires up the adrenal glands. It also increases the rate and force of the heartbeat.
Avoidance is a very effective way to treat allergies. Ideas for avoiding allergens are:
Your health care provider will also have suggestions for avoiding the allergens that cause reactions.
Bayhealth is Southern Delaware’s healthcare leader with hospitals in Dover and in Milford. Bayhealth provides a wide range of medical services, including cardiovascular, cancer, orthopaedics and rehabilitation, pediatrics, respiratory care, sleep care, surgical weight loss and women’s services.