Allergies

Allergies are hypersensitive responses from the immune system to substances that either enter or come into contact with the body. 

Asthma: Controlling Cockroaches

Exposure to cockroaches may increase asthma symptoms. Cockroaches leave behind particles from their feces, eggs, and shells that can cause an allergic reaction. Cockroaches are a problem in many homes, especially in the southern part of the United States. Here are some steps you can take to remove cockroaches from your…

Bedbugs

What are bedbugs? Bedbugs are flat, wingless insects about 0.25 in. (0.6 cm) long. They range in color from almost white to brown. They turn rusty red after feeding. Like mosquitoes, bedbugs feed on blood from animals or people. Bedbugs have that name because they like to hide in bedding and mattresses. Bedbugs usually…

Common Stinging or Biting Insects or Spiders

Many insects, such as the following, cause mild reactions: Bedbugs. Kissing bugs. Chiggers. Fleas. Flies. Mites. Mosquitoes. Nonpoisonous spiders. Ticks. Scabies. Lice. For more information on lice, see the topic Body Lice, Head Lice, or Pubic Lice. Some insects are more likely than others to cause allergic or toxic…

Controlling Dust, Dust Mites, and Other Allergens in Your Home

Dust builds up throughout your home. The dust may contain substances that trigger asthma symptoms, such as wheezing or coughing, or another allergic reaction, such as the rash of atopic dermatitis or stuffy nose of allergic rhinitis. These substances are called allergens. Dust mites are another example of an allergen…

Controlling Indoor Mold

Mold can get into a building through open doorways, windows, vents, and heating and air conditioning systems. Mold in the air outside can also attach itself to clothing, shoes, bags, and pets and can be carried indoors. Mold will grow in places that have a lot of moisture, such as around leaky roofs, windows, or pipes…