The allergist treats asthma and allergies
The allergist treats asthma and allergies
An allergist is a physician who specializes in the diagnosis and treatment of asthma and other allergic diseases. The allergist is specially trained to identify the factors that trigger asthma or allergies. Allergists help people treat or prevent their allergy problems. After earning a medical degree, the allergist completes a three-year residency-training program in either internal medicine or pediatrics. Next the allergist completes two or three more years of study in the field of allergy and immunology. You can be certain that your doctor has met these requirements if he or she is certified by the American Board of Allergy and Immunology.
What is an allergy?
One of the marvels of the human body is that it can defend itself against harmful invaders such as viruses or bacteria. But sometimes the defenses are too aggressive and harmless substances such as dust, molds or pollen are mistakenly identified as dangerous. The immune system then rallies its defenses, which include several chemicals to attack and destroy the supposed enemy. In the process, some unpleasant and, in extreme cases, life-threatening symptoms may be experienced in the allergy-prone individual.
The cause of allergic reactions
There are hundreds of ordinary substances that can trigger allergic reactions. Among the most common are plant pollens, molds, household dust (dust mites), cockroaches, pets, industrial chemicals, foods, medicines, feathers and insect stings. These triggers are called “allergens.”
Who develops asthma or allergies?
Asthma and allergies can affect anyone, regardless of age, gender, race or socioeconomic factors. While it’s true that asthma and allergies are more common in children, they can occur for the first time at any age. Sometimes allergy symptoms start in childhood, disappear for many years and then start up again during adult life.
Although the exact genetic factors are not yet understood, there is a hereditary tendency to asthma and allergies. In susceptible people, factors such as hormones, stress, smoke, perfume or other environmental irritants also may play a role.
Types of allergy problems
An allergic reaction may occur anywhere in the body but usually appears in the nose, eyes, lungs, lining of the stomach, sinuses, throat and skin. These are places where special immune system cells are stationed to fight off invaders that are inhaled, swallowed or come in contact with the skin.
Allergic Rhinitis (Hay Fever)
Allergic rhinitis is a general term used to describe the allergic reactions that take place in the nose. Symptoms may include sneezing, congestion, runny nose, and itching of the nose, the eyes and/or the roof of the mouth. When this problem is triggered by pollens or outdoor molds, during the Spring, Summer or Fall, the condition is often called “hay fever.” When the problem is year-round, it might be caused by exposure to house dust mites, household pets, indoor molds or allergens at school or in the workplace.
Asthma symptoms occur when airway muscle spasms block the flow of air to the lungs and/or the linings of the bronchial tubes become inflamed. Excess mucus may clog the airways. An asthma attack is characterized by labored or restricted breathing, a tight feeling in the chest, coughing and/or wheezing. Sometimes a chronic cough is the only symptom. Asthma trouble can cause only mild discomfort or it can cause life-threatening attacks in which breathing stops altogether.
Contact Dermatitis/Skin Allergies
Contact dermatitis, eczema and hives are skin conditions that can be caused by allergens and other irritants. Often the reaction may take hours or days to develop, as in the case of poison ivy. The most common allergic causes of rashes are medicines, insect stings, foods, animals and chemicals used at home or work. Allergies may be aggravated by emotional stress.
Anaphylaxis is a rare, potentially fatal allergic reaction that affects many parts of the body at the same time. The trigger may be an insect sting, a food (such as peanuts) or a medication. Symptoms may include:
vomiting or diarrhea
a dangerous drop in blood pressure
redness of the skin and/or hives
swelling of the throat and/or tongue
loss of consciousness.
Frequently these symptoms start without warning and get worse rapidly. At the first sign of an anaphylactic reaction, the affected person must go immediately to the closest Emergency Room or call 911.