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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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Do you have the winter sniffles?

5 ways you can manage indoor winter allergies

Do you suffer from itchy eyes, a runny nose or a scratchy throat during winter? Do you often find yourself coughing, sneezing and having trouble breathing? Chances are you may have indoor allergies.

Allergens are not just found outside in trees or grass. The indoors can host many triggers like mold in pipes, pet allergens, and dust mite and cockroach allergens.

Indoor allergies are a year-round problem, but you’ll notice them more during the winter because you spend more time at home. Also, because of the colder weather, you’re likely keeping doors and windows shut to keep the cold out. By doing that, you’re also sealing allergens indoors with you, and your heating system will recirculate the indoor air and any allergy triggers.

You don’t have to accept indoor allergies as an inevitable fact of the winter season. Using these five tips from the American College of Allergy, Asthma and Immunology (ACAAI), you can be proactive and manage your winter allergies.

1. Clean regularly
It may seem like a simple solution, but cleaning house is one of the easiest ways to deal with indoor winter allergies. Dust, mold, pet dander and dust mite and cockroach droppings can hide anywhere and cause sneezing, coughing and congestion.

To limit your exposure to these indoor allergens, keep a regular cleaning schedule. Dust and vacuum frequently, especially under and behind furniture, where allergens can easily build up. Wipe down counters and other surfaces that you use often. During the holidays, wipe off holiday decorations, especially if you’ve stored them in areas where dust and mold proliferate.

2. Reduce pet allergy triggers
It can be difficult to balance your love for your pets and indoor allergy management. Just like you, your pets are spending more time indoors, increasing your exposure to pet dander and saliva.

While you may enjoy snuggling with your pets before bed, keeping them out of the bedroom will help with any allergies you experience at night that can disrupt your sleep. During the day, keep the door to your bedroom closed, so your furry family members aren’t tempted to go in.

When petting your cat or dog, make sure to wash your hands afterward, so you don’t accidentally touch your face and provoke an allergic reaction. Finally, remember to groom your pets regularly to reduce indoor air allergens.

3. Protect your bedding from dust mites
According to the ACAAI, dust mites live and multiply in warm, humid places and are often found in pillows, mattresses, carpeting and upholstered furniture. Even if your home is visibly clean, dust mite allergen particles are too small to be seen.

Use mite-proof zippered cases for your mattress and pillows to limit your exposure to dust mites. Every week, wash and change your sheets, blankets and other bedding in hot water to eliminate any lingering dust mite droppings.

4. Find and prevent indoor mold
Did you know that there are roughly 1,000 species of mold in the U.S.? Many molds aren’t visible to the naked eye, and mold spores can cause allergic reactions when they become airborne. Because mold can grow in your basement, bathroom, under the sink and anywhere with running water, avoiding mold allergens can be difficult.

If you suspect you have indoor mold, it’s best to contact a professional who can find and clean up existing mold in your home. To prevent mold from growing inside your home, quickly stop and clean up any leaks. Also, make sure to reduce moisture and humidity in bathrooms and kitchens. If humidity control is a problem, consider a dehumidifier.

5. Find an allergist
Consulting an allergist is the best way to identify and treat your winter indoor allergies.

“Allergists are the best trained medical professionals to treat allergies and asthma,” said Kathleen May, MD, ACAAI president. “They can help you get tested, get treated and get better so you can enjoy the holiday season and beyond.”

After a consultation, your allergist may perform tests to diagnose your allergies and identify potential causes. An allergist can also prescribe antihistamines and other allergy treatments to give you relief from your allergic symptoms.

Using these five tips, you can better manage your indoor allergies this winter so you can enjoy the cozy colder months without suffering from allergies. 

About ACAAI
ACAAI is a professional medical organization of more than 6,000 allergists-immunologists and allied health professionals, headquartered in Arlington Heights, Ill. The College fosters a culture of collaboration and congeniality in which its members work together and with others toward the common goals of patient care, education, advocacy, and research. ACAAI allergists are board-certified physicians trained to diagnose allergies and asthma, administer, and provide patients with the best treatment outcomes. For more information and to find relief, talk to your OAAC provider.

The post Do you have the winter sniffles? appeared first on Oklahoma Allergy and Asthma Clinic.

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