|
|
|
What is IgE? What is anti-IgE treatment?
What is the difference between allergy and
asthma? Various parts of the body can be affected by allergy (nose, skin, gut, etc.), including the lungs. Asthma involves sensitive airways which react to allergens (allergic reaction), as well as other conditions, such as exercise, infections, or weather changes. Airways in the lungs NARROW due to muscles tightening around the airways, swelling inside of airways, and producing extra mucus making it difficult to breathe. Allergy is the most common asthma trigger.
Sometimes, at school, I have trouble breathing
when I run in PE. What should I do? Talk to your doctor about using a quick-relief inhaler like Proventil®, Ventolin®, or Maxair®, 15 minutes prior to strenuous activities. If this is not enough, adding Singulair® once a day for prevention can help. Also, taking a daily low-drowsy antihistamine like Zyrtec®, Clarinex®, or Allegra® during the seasons your allergies are worse might prevent allergy problems and consequently decrease asthma symptoms. If you do not have a specific diagnosis, an allergy evaluation or tests can pinpoint your specific problem and provide you with a plan that should enable you to play sports or participate in PE.
My doctor prescribed two inhalers for asthma
– one for daily use and one to use when I have symptoms. Why should I use an
inhaler when I am not having trouble breathing? Consequently, asthma is treated with two kinds of medicines - "controller" medicine used daily and "quick-relief" medicine taken when symptoms occur. Your daily inhaler decreases airway inflammation making it less likely that you will have breakthrough symptoms. It is important that you treat airway inflammation daily reducing the need for quick-relief medicine. "Controller" medicines are usually taken once or twice daily and should be left at home; however, always carry your quick-relief inhaler in your purse or pocket.
I have hay fever from spring pollen and
also have those same symptoms in the fall. What is the major pollen causing
nasal symptoms and headaches in September? Ragweed has inconspicuous small pale yellow-to-greenish flowers (often confused with goldenrod which has bright yellow flowers) and is found in abundance on roadsides, fields, pastures, and in some cultivated yards or parks. Ragweed pollen is abundant, potent, lightweight - which makes it easily airborne, and is inhaled into the nose and deep into the lungs. It can cause the same allergic rhinitis (commonly called hay fever) symptoms in the eyes and nose triggered by spring pollens. Pollen-allergic asthma sufferers also can have increased symptoms from ragweed exposure.
What triggers asthma in infants and very young
children? The flu shot and pneumococcal vaccine are recommended for children as well as adults with persistent (recurring) asthma. Infants and children exposed to tobacco
smoke are more likely to have bronchial infections than children not living with
smokers.
I have heard that nasal sprays are addictive.
Is this true? Consequently, use OTC decongestant nasal sprays only 3-5 days in a row to treat acute nasal stuffiness occurring with severe hay fever, the common cold, or sinusitis. Prescription nasal sprays work differently; they are NOT addictive. Prescription corticosteroid nasal sprays, like Flonase or Rhinocort Aqua, can break the cycle of symptoms caused by chronic use of OTC decongestant nasal sprays.
My doctor changed my nebulizer medicine from
albuterol to Xopenex™. What is the difference? Chemicals (molecules) can exist as two mirror images that are not superimposed on each other--such as your right and left hands. The two chemical images are referred to as isomers. However, often it is only one isomer that provides the desired effects and the other is either inactive (not needed) or sometimes even causes side effects. Xopenex™ is an example of a drug in which the desired isomer has been purified. It is a single isomer version of albuterol commonly used by asthma sufferers for quick-relief. Xopenex™ is preservative-free and can be given in smaller doses than albuterol which may lessen shakiness or nervousness that some patients experience with albuterol. Xopenex™ can last longer than albuterol.
What are allergy shots and how do they work? Allergy shots work by vaccinating a person against specific inhaled allergens to which that person is allergic. Venom therapy for stinging insect allergy works in the same way. When a person is exposed to allergens by an injection (allergy shot), the body is tricked into responding to these specific allergens in a different way. Gradually increasing the amount and strength of allergen in the shots suppresses production of the allergy antibody, referred to as IgE. Allergy shots increase the production of blocking antibody (IgG) which helps prevent the allergen from attaching to mast cells. Mast cells explode and release the chemical mediators, such as histamine, that cause inflammation and allergy symptoms.
Who should get allergy shots and do they only help
while one is taking them? A study published in the New England Journal of Medicine in 1999 found that individuals with grass-pollen allergies, who went through a complete course of immunotherapy or allergy shot treatment, were still benefiting three years after stopping shots. Allergen immunotherapy can have long-term, perhaps even permanent benefits. Most patients are on allergy shots for 3-5 years. Some patients may require shots longer and potentially for a lifetime. Allergy shots involve injecting small amounts of the allergen(s) to which a person is allergic. The concentration and amount of allergen is gradually increased and the patient’s tolerance for those particular allergens increases.
Does GERD worsen asthma? Reflux disease may trigger asthma, coughing, sore throat, hoarseness, or laryngitis. GERD is sometimes missed as an asthma trigger when esophageal symptoms such as heartburn, regurgitation, or "hiatal hernia" are not present and the disease is "silent." While Gastroesophageal Reflux Disease is not an asthma trigger in all asthmatic individuals with GERD, antireflux therapy to reduce acid production may improve asthma in individuals whose reflux is associated with respiratory symptoms. Recent information indicates that a 3-month medication trial is needed to fully evaluate effectiveness. Common medicines used to treat GERD include Nexium, Pepcid®, Prevacid®, Prilosec® or Protonix®. I If necessary, twenty-four hour esophageal pH monitoring helps document silent disease. Surgery is recommended and helpful in some cases.
Do infections aggravate allergies? Take an influenza shot every year and the pneumonia vaccine (Pneumovax®) at least once. Decrease your chances of getting an infection by not sharing foods, drinks, and dishes; avoid contact with individuals who have a viral infection such as a cold or flu. Scientific studies show viral infections are transmitted through coughing and sneezing, hand shaking, and by touching door knobs, telephones, and other objects used by an infected person. Hand washing significantly decreases your exposure. Avoid touching your eyes, nose, and face with unwashed hands.
Are allergies just annoying or can they be a health
threat? Note that over-the-counter antihistamines can be dangerous to take when involved in activities requiring quick reaction time and coordination such as required by certain occupations or while driving. Decreased reaction time can occur even in individuals who do not feel drowsy. While itching, coughing, sneezing, watery eyes, etc., certainly are annoying, allergic symptoms can be debilitating and even life-threatening. Skin testing and an allergy evaluation allows for treatment which, in most cases, prevents allergies from becoming a debilitating illness. Anaphylaxis, which involves symptoms including low blood pressure and fainting, is a life-threatening allergic reaction. Individuals can be so allergic to an insect sting, medication, food, or inhalant that life-threatening reactions occur. Asthmatic individuals may develop severe symptoms during any one episode and chronically uncontrolled asthma puts one at increased risk for life-threatening symptoms. North Carolina had 138 residents die from asthma in 2001.
I am on an inhaled steroid and a "quick
relief" medicine. Since inhaled steroids do not relieve symptoms right
away, why are they prescribed? Corticosteroids are the most potent anti-inflammatory medicines available and inhaled corticosteroids have far less side effects than do the oral forms. Even though patients do not feel immediate relief after taking inhaled corticosteroids, these medicines improve asthma over time, decreasing the need for "fast-acting" medicines. Studies show that patients have more symptom-free days, that nighttime asthma is under better control, there are fewer urgent care visits, and a lower rate of hospitalizations and death from asthma in patients that take inhaled corticosteroids. Guidelines recommend inhaled corticosteroids as one of the first choices for long-term maintenance of persistent asthma, even in mild cases. Anti-leukotrienes (not a steroid), like Singulair tablets, also appear to decrease inflammation and may be another choice.
Does running a humidifier help allergy symptoms? Nasal, sinus, throat, chest, and skin symptoms can be aggravated by very dry air. We recommend a cool mist vaporizer. Fill the tank of the vaporizer with hot tap water or distilled water; use only distilled water in ultrasonic humidifiers. Place the device in a safe location to avoid risk of spilling the hot water; please, direct the mist so that furniture or carpeting will not be soaked. Pour out the remaining water in the morning and let the device air dry during the day. Refill with hot tap water each night. Only use the device in the bedroom at night when the heat is on.
I use to take albuterol infrequently, but in the last
few weeks need it several times a day. What can I do to get back to my old
dosing routine? Albuterol is a bronchodilator and relieves symptoms by relaxing smooth muscle around the airways in the lungs. It does not decrease airway inflammation which makes your bronchial tubes more sensitive to allergens and other triggers. Taking an inhaled steroid, such as Flovent® or Pulmicort® and/or a leukotriene modifier, such as Singulair®, decreases inflammation. An oral steroid, such as prednisone, may be needed on a short-term basis to get your asthma under control. Asthma medicines become less effective when infections, such as sinusitis, are present. Low-level, chronic indoor allergen exposure to pets, molds, dust, etc, or exposure to irritants such as tobacco or wood smoke, makes asthma harder to control.
Can I get allergy shots for food allergies and do food
allergies disappear with time? Symptoms caused by food allergy can sometimes disappear over time; however, allergy to peanuts, tree nuts, fish, and shellfish typically last for a lifetime. Oral antihistamines are used to treat less severe reactions such as localized skin or gastrointestinal symptoms. Epinephrine (Adrenalin) injections are necessary, and can be life saving, to treat severe food reactions. Epinephrine kits can be prescribed with preloaded
syringes or automatic injectors which patients use for self-injection. Always go
to the emergency room following use, even if you improve. I have chronic hives but no allergies have been
identified. Are hives always caused by allergy?
Is contact dermatitis caused by allergy? Irritant dermatitis is caused by irritation which may burn rather than itch and may start immediately after contact. The most frequent location of contact dermatitis is on the hands. Allergens that cause contact dermatitis include soaps, fragrances, nickel, dyes, latex (rubber), topical medications, any type of cosmetic, chemicals at home or in workplace, certain fabrics or dyes, etc. Identification of allergens that trigger rash along with avoidance is the best treatment. Keeping the skin soothed and avoiding other harsh substances until the skin is clear is the mainstay of treatment when irritants trigger contact dermatitis. "Patch" tests are painless and can help identify allergens. We offer allergy shots for poison ivy sensitive persons.
Is it important to treat symptoms of common illnesses
such as hay fever or itchy eye symptoms?
I was stung on the arm by a yellow jacket and had
redness and swelling around the area. Am I allergic to yellow jackets? Stinging insect "allergy" is an immune response which causes a systemic (whole body) reaction. Swelling extending over a large area of the body or systemic symptoms such as itching, hives, shortness of breath, loss of blood pressure, fainting, or anaphylaxis often associated with a feeling of impending doom all indicate a systemic allergic reaction to the insect sting that can be life-threatening. An allergist should evaluate (skin test), establish a management plan (including self-injectable Adrenalin®, which can be life-saving), and provide desensitizing treatment (allergy shots) for any individual having even a mild systemic allergic reaction to an insect sting. A mild systemic allergic reaction can become life-threatening on subsequent stings.
My child has frequent "colds" and the
pediatrician has recommended allergy testing. What are these tests and what is
involved? A screening blood test, referred to as RAST (radioallergosorbent test), can be used when preferred or if the child has a skin disorder or is on medication preventing skin testing. Blood is taken from a vein in the arm and analyzed to see if the blood contains abnormally high levels of antibody to certain allergens. Unfortunately, the RAST is less sensitive than the skin test. The benefit of skin testing is to confirm a diagnosis of allergy and pinpoint specific allergens causing symptoms.
Can allergy cause sinusitis? Normally, sinuses drain into your nose through small openings called ostia; nasal congestion and mucus block the openings. Allergy affects the cilia, microscopic finger-like projections forming the mucosal layers inside the sinuses, which sweep or beat mucus and debris into the nose and toward the throat. When this sweeping-like motion is impaired, sinus drainage is poor. Bacteria can multiply and cause infection; in addition, swelling due to infection makes it even harder for sinuses to drain and a cycle of congestion and infection occurs.
Do you have any self-help tips to deal with chronic
sinusitis? Additionally, you may need a different antibiotic or to stay on it longer. If allergy is the problem, avoidance of known triggers decreases nasal congestion which leads to poor drainage of the sinuses. Self-help ideas
Over-the-counter medicines sometimes contain
antihistamine, decongestant or both. What is the difference and are both needed?
We recommend that most allergy patients stay on a non-sedating antihistamine during their allergy seasons or year-round and add a decongestant as needed. Non- or low-sedating antihistamines that are that available only by prescription include Clarinex®, Allegra®, and Zyrtec®. Claritin® products are available over-the-counter.
How does pollen trigger allergy symptoms or hay fever? In allergic individuals,
The inflamed linings of your nose, sinuses, and eyes result in runny nose, irritated throat, nasal congestion, sneezing, and watery eyes. Symptoms often intensify several times a day during pollen season. Symptoms can disturb sleep and trigger asthma, headaches, recurrent sinusitis, recurrent sore throats, fatigue and irritability.
I have itching inside my mouth when I eat certain
foods. Is this a food allergy?
The symptoms resolve rapidly and are not to be confused with serious systemic food reactions that include
Danger signs of a food reaction needing immediate treatment can include
What plants cause spring and summer hay fever symptoms? While gardeners appreciate plentiful rain and snowfall during the winter and early spring, it may increase the suffering of pollen-allergic individuals. The intensity of the pollen season is related to the amount of moisture retained in the soil. Early tree growth (and its pollen release) combined with variable weather set the stage for a bad spring allergy season. All symptoms from outdoor exposure are not necessarily caused by pollen alone. For example, warm weather encourages mold growth, while a cold snap or drop in barometric pressure causes molds to release spores. Dry windy days raise pollen counts. Rain reduces pollen counts but only temporarily. When dry windy days follow rain, mold spores are in the air with pollen and you inhale both.
I only have nasal and eye symptoms in mid-to-late
spring. Is it normal for pollen to irritate the nose or do I have an allergy? There is a "priming effect" associated with pollen which means that symptoms may worsen as the season progresses. You may be allergic to certain plants that pollinate in mid-to-late spring and, therefore, are not symptomatic in early spring. Antihistamine taken prior to outdoor exposure is helpful for mild symptoms. If your symptoms interfere with sleep or daily functioning, prescription low-sedating antihistamine (Clarinex, Allegra, or Zyrtec) begun several weeks prior to and continued during "your allergy season" can reduce symptoms.
Does my asthma medicine need to be adjusted for
surgery? In addition to your usual asthma medications, a short course of oral corticosteroids may be started a few days before surgery to improve lung function or give you extra coverage during surgery. If you have taken oral corticosteroids in the last six months, your doctor may also prescribe intravenous hydrocortisone during and shortly after your surgery.
What is allergy and can it develop at any age?
Allergy is a reaction of the immune system to a foreign substance which is harmless. The immune system defends against attackers which are recognized as "nonself" or "foreign" and is protective when it responds to "foreign" invaders such as viruses, bacteria, fungi, and parasites. However, when the immune system responds to a harmless foreign invader such as house dust or pollen, it is responding to a false alarm. Becoming allergic can occur after a few exposures or after months to years of exposure. The capacity to become allergic is inherited, but family members are not necessarily allergic to the same allergens. Once the "change" or allergy develops, it will continue. Allergy can develop at any age.
|
|
Contacting us Please CALL
our office (828-322-1275 or 1-800-432-5015) if you or your child is a patient at
Hickory Allergy & Asthma Clinic, and
|