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Respiratory Symptoms From Inhaled Substances

Respiratory Symptoms From Inhaled Substances

Allergens

An allergen is a substance which is capable of initiating an allergic reaction. The most important inhaled allergens are tiny invisible pollen grains, mold spores, house dust and animal danders.

Allergy-causing pollens come from plant flowers which at certain times of the year release large quantities of light buoyant pollen which can be carried for miles by the wind. These flowers are inconspicuous and often don’t really look like blossoms. They include trees which pollinate in spring, grasses in summer, and weeds in the fall. (See OAAC educational material handout Pollen Seasons) Ornamental flowers are generally not very important in allergy. They have large sticky pollen grains that are carried to other flowers by insects. They are not sufficiently abundant in the air to cause symptoms unless an allergic person is very close to them. However, some ornamental flowers are related to weeds. This is why some ragweed-allergic patients have symptoms when they are close to chrysanthemums, zinnias, asters, daisies, etc.

There are many types of molds in our environment. They have varying preferences for the types of places and conditions under which they grow into colonies. Some prefer to colonize indoors, some outdoors. The spores released by colonies are carried through the air to new places suitable for new colony formation. These spores are smaller than pollen grains but like pollens can cause allergic symptoms when they are inhaled.

The important constituents of house dust are the products of microscopic organisms found in most homes. House dust mites and molds thrive in warm moist conditions.

Like humans, fur-bearing animals continually grow new layers of skin. The indoor pet’s “dander” (tiny flakes of the outer layer of skin) falls off, disintegrates, and causes symptoms when inhaled. During early stages of allergy to a pet, patients are often unaware that the animal is contributing to their symptoms.

If a person is allergic to a pet, he/she should strictly avoid the animal. Outdoor pets are not of major concern. Pets that are confined to a limited part of the house (such as a tiled or wood-floored utility room and kitchen) are better then pets that contaminate the entire house. At the very least, pets should be kept out of the allergic person’s bedroom at all times. (See OAAC educational material handout Environmental Controls for Indoor Allergens.)

Irritants

An irritant is a substance which may trigger certain symptoms strictly because of its irritating effects. The symptoms mimic allergy, but in fact they are not really the result of an allergic reaction. Some individuals are extremely sensitive to these inhales substances (which incidentally bother the average person very little). The basis for this extreme membrane sensitivity is not well understood, but it is not allergy.

The most common offenders are smoke, cold air, wind, temperature changes, and weather fronts. Other provoking factors which bother some people in varying degrees include sharp pungent odors (paint, turpentine, aerosol sprays, perfumes, cleansers, cosmetics, chemical odors, exhaust smoke, insecticides, detergents and new fabric odors).

Respiratory infection is included in this category as is external wheezing in asthmatics.

Some substances are not only allergens or irritants but can be both. Examples include house dust, feed and grain dusts, and live Christmas trees. In any given patient allergens, irritants or a combination of both may be of major importance in the production of either asthma or nasal symptoms.

Occasionally patients who are sensitive to both irritants and allergens will have useful reduction in nasal and chest symptoms caused by irritants when their allergies are successfully treated. More commonly their susceptibility to irritants remains a separate problem and the treatment is by appropriate medication and avoidance. Irritant induced symptoms are more difficult to treat than those from allergens.

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OKC named 4th most challenging city for spring allergies

3-15-2023 – Today, the Asthma and Allergy Foundation of America (AAFA) released its annual Allergy Capitals™ report for 2023. The report identifies the most challenging cities for pollen allergies in the 100 most populated metropolitan areas in the continental United States. Cities are ranked based on tree, grass, and weed pollen scores, over-the-counter allergy medicine use, and availability of board-certified allergists/immunologists.

Oklahoma City was ranked fourth and Tulsa was fifth. Wichita, Kansas, took the top spot based on its high tree and grass pollen scores, higher-than-average use of allergy medicines, and limited number of allergy/immunology specialists per patient.

The top 20 Allergy Capitals for 2023 are 1. Wichita, KS; 2. Dallas, TX; 3. Scranton, PA; 4. Oklahoma City, OK; 5. Tulsa, OK; 6. Sarasota, FL; 7. Cape Coral, FL; 8. Orlando, FL; 9. Des Moines, IA and 10. Greenville, SC.  Oklahoma was sixth in 2022 while Tulsa was 21st.

AAFA began identifying annual Allergy Capitals 20 years ago in 2003. Since that first report, pollen counts have worsened. This year’s report once again highlights the significant impact that climate change has on public health – specifically, for people with pollen allergies. Rising temperatures result in longer growing seasons, leading to higher pollen concentrations in many areas of the country.

“We are experiencing longer and more intense allergy seasons because of climate change. For people with asthma, allergies can trigger an asthma attack,” says Kenneth Mendez, CEO and president of AAFA. “About 81 million people in the U.S. have seasonal allergic rhinitis, which is most often caused by pollen allergies. If we don’t take immediate action on the climate crisis, pollen production will only intensify. This means more allergy and asthma attacks and additional strain on our health systems.”

The National Climate Assessment from the U.S. Global Change Research Program confirms that climate change is a major threat to public health. Longer and more intense pollen seasons caused by climate change particularly impact people with allergies and asthma. From 1990-2018, the plant-growing season extended an average of 20 days and produces about 21 percent more pollen, putting people with pollen allergies at risk of more symptoms for longer periods. Allergies can also trigger asthma episodes or attacks. Around 60-80 percent of the nearly 26 million people in the U.S. with asthma have allergic asthma.

“As pollen counts spike, we often see spikes in emergency room visits for asthma,” Mendez says. “Around 3,600 people per year die from asthma, so it is important to address and manage asthma and allergy triggers where you live.”

Black, Hispanic, and Indigenous populations bear the disproportionate burden of air pollution, asthma, allergies, and climate change. This is the result of a long history of discriminatory housing and environmental policies in the U.S. that have pushed people of color to live in undesirable neighborhoods with greater environmental and social risks. As a result of systemic racism in U.S. policies, governance, and culture, racial and ethnic minority populations are more vulnerable to the health impacts of climate change.

“AAFA’s Allergy Capitals™ report serves as a national call-to-action on climate change due to its impacts on individual and community health,” says Melanie Carver, chief mission officer of AAFA. “While there are steps individuals can take to manage their symptoms, it is imperative for communities to build their climate resiliency, improve their city planning, and take action on health disparities impacting higher risk populations.”

For people who are impacted by pollen allergies, there are options available to prevent or treat allergy symptoms. Treatment options include over-the-counter or prescription allergy medicines. Medications are most effective when started before a person’s allergy season begins.

“The Oklahoma City area has pollen all four seasons of the year, so many allergy sufferers don’t get much of a break,” said Bret Haymore, MD, board-certified allergist with the Oklahoma Allergy & Asthma Clinic.

Haymore recommends seeing an allergist who can find out what your allergy triggers are and make a treatment plan to best help manage them.

For more information, visit the OAAC website at www.oklahomaallergy.com to view the addresses for all Oklahoma Allergy and Asthma Clinic locations.  To make an initial appointment or to request more information, please call (405) 235-0040.

Spring Allergy Chart

 

The post OKC named 4th most challenging city for spring allergies appeared first on Oklahoma Allergy and Asthma Clinic.

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