Skip to content

Allergies Health Center

Font Size

Understanding Allergies -- Prevention

How Can I Prevent Allergies?

Respiratory allergies: To prevent respiratory allergies try the following strategies:

  • Consider buying a large and quiet high-efficiency (HEPA) air cleaner for your bedroom to help remove airborne allergens.
  • Use an air conditioner in your home and car during warm seasons to keep pollen out and reduce indoor humidity (which encourages the growth of molds, mites, and roaches).
  • If you can't fix a water leak, alternative interventions include regularly cleaning damp areas with a diluted bleach solution to kill molds; always running the exhaust fans when showering and cooking; verifying that your clothes dryer is vented to the outside.
  • If you have become sensitized to dogs or cats, try to find them a new home; otherwise try to keep them outside as much as possible (and certainly out of your bedroom).

Food allergies:

Understanding Allergies

Find out more about allergies:





  • If you have a true dairy allergy, instead of dairy products, try other options such as tofu-based foods to prevent food allergies.
  • Always check food labels for additives that are known allergens, such as yellow food dye No. 5 (tartrazine), "natural" red dye (carmine), and gum arabic if you are allergic to any of these items.
  • When eliminating foods from your diet, be sure to find alternate sources of nutrients. For example, if you cannot eat dairy foods, choose other foods high in calcium or take calcium supplements.

WebMD Medical Reference

Reviewed by Luqman Seidu, MD on February 28, 2015

Today on WebMD

man blowing nose
Make these tweaks to your diet, home, and lifestyle.
Allergy capsule
Breathe easier with these products.
cat on couch
Live in harmony with your cat or dog.
Woman sneezing with tissue in meadow
Which ones affect you?

blowing nose
woman with sore throat
lone star tick
Woman blowing nose

Send yourself a link to download the app.

Loading ...

Please wait...

This feature is temporarily unavailable. Please try again later.


Now check your email account on your mobile phone to download your new app.

cat lying on shelf
Allergy prick test
Man sneezing into tissue
Woman holding feather duster up to face, twitching