Environmental Control Measures to Decrease Allergy Symptoms

Dr. Kolinsky • December 20, 2021

Indoor Allergen Exposure

What can be done to decrease allergen exposure inside your home or office? Dr. Nicholas Kolinsky has some great tips and tricks to share!


Environmental control measures are a key part of any allergy action plan. Here are some helpful things you can do at home to decrease your exposure to allergens in your environment.


Dust Mites:

In order to decrease your exposure to dust and dust mites, we recommend you use specially designed dust mite covers for your pillows and mattress. You can find these at our offices or online via Amazon.com, Allergy Control Products or Mission: Allergy. Dust regularly with dusting products and wear a mask while cleaning. Sheets and pillowcases should be washed on the hot cycle (130 degrees or greater) and also dried in the dryer as opposed to hang drying. Try and keep pillows off the floor. Keeping the humidity level as low as possible with a dehumidifier is also helpful. The target is to have the humidity level below 50%, but levels below 50% may be difficult to reach during certain times of the year. If you have children, frequently wash stuffed animals or place them in a bag in the freezer for a couple of days to help kill off dust mites. Ideally, do not have carpet in the bedroom. HEPA air filters may be beneficial; however, they can be expensive and may not be very effective depending on the filter's size and location in the room. These measures will greatly reduce your exposure to dust and dust mites, but only allergy shots and appropriate medications can decrease or eliminate symptoms from dust mite allergy.


Mold:

Mold grows in areas of increased humidity, low light and cool temperatures. Areas where mold grows best are the basement, the area around the clothes dryer, and bathrooms. In addition, potted plants, mulch, leaves and other decaying matter have high levels of mold. If your carpet has ever been wet, you will have heavy mold growth under the carpet for the life of the carpet (which is why you should not steam clean your carpets). Placement of a dehumidifier can be helpful (ideal humidity level is below 40%-50%).


Pets:

Since pets are most often beloved members of the family, we do not recommend you get rid of them! Instead, you can take steps to help minimize your allergic responses. Rinsing your cat or dog will temporarily remove animal dander. It is best to do this at least once a week if possible. Keeping your pets out of your bedroom or AT LEAST off upholstered furniture is also a good idea. If possible, keep your pets in rooms without carpets. Dog and cat allergens can stay in a room for up to 6 months, even after the animal has been removed. There is also no such thing as a hypoallergenic dog/cat. Unfortunately, this is a common misconception. Allergy immunotherapy (allergy shots) will decrease and possibly eliminate your pet allergies.


Trees/Grass/Weeds:

Trees and grass pollinate in the spring and into summer. Ragweed pollinates from mid-summer until the first hard freeze of winter. Some of these pollens blow for up to 400 miles and are very difficult to avoid outdoors. Please keep your windows and doors shut at all times and filter your air through a high efficiency filter placed in your central health and air system. Change the filter monthly or according to the manufacturer's recommendations. Here, too, allergy immunotherapy can decrease or eliminate your pollen allergies.

You might also like

Mailbox
By Dr. Nicholas Cline May 27, 2026
If you spend any time browsing the internet or social media, you’ve likely seen advertisements for mail-in allergy kits. They promise to test for hundreds of food intolerances and environmental sensitivities using just a few strands of your hair or a quick saliva swab. It sounds incredibly convenient, painless, and comprehensive. But if it sounds like a gimmick, it probably is. While these mail-in tests are heavily marketed, they often lack scientific backing and can leave patients feeling more confused than comforted. The Science of Allergy Testing. What Are We Looking For? To understand why hair and saliva tests don't work, we have to look at how the immune system reacts to allergens. When you have a true allergy, your body produces a very specific type of antibody called IgE (Immunoglobulin E) . These antibodies bind to mast cells (allergy cells), which are on high alert to protect you from perceived invaders like pollen, dust mites, or specific food proteins. The fundamental flaw with mail-in hair and saliva kits comes down to basic biology: Wrong Locations: Mast cells and IgE antibodies are not traditionally found in your hair follicles or saliva. Unreliable Results: Because these testing methods are looking in the wrong place, they are highly unstandardized and unvalidated. You are highly likely to get a flood of false positives or false negatives that are impossible to interpret accurately. What the Experts Say: Major medical organizations strongly advise against these methods. The National Institute of Allergy and Infectious Diseases (NIAID) explicitly recommends against using hair analysis for food allergy evaluations due to a lack of diagnostic value. Furthermore, the American Academy of Allergy, Asthma & Immunology (AAAAI) and the American College of Allergy, Asthma & Immunology (ACAAI) have issued strong practice guidelines stating that hair analysis should not be used to evaluate food allergies. The Big Misconception: IgE vs. IgG Many mail-in companies charge anywhere from $150 to upwards of $600 for "sensitivity" panels. When patients produce these multi-page reports, the testing is almost always checking for IgG (Immunoglobulin G) antibodies, not IgE. There is a massive difference between the two:
By Dr. Nicholas Cline May 11, 2026
The Science Behind Spring Sneezes
By Dr. Phil Jones April 22, 2026
Eczema & Urticaria: What They Are, How They're Treated