Allergic Asthma Make an Appointment Refer a Patient Ask a Question Reviewed by Harold S. Nelson, MD (December 01, 2011) Allergies can make asthma symptoms worse. So it is best to avoid the things to which you are allergic. Knowing if you are allergic, and to what, can help you take appropriate measures in your home to decrease exposure to these allergens. Although many of the measures are important for the entire home, your bedroom is the most important room in the house because that is where you usually spend 1/3 to 1/2 of your time. Learn how to reduce allergies and asthma, based on your type of allergy. Animal allergy Dust mite allergy Food allergy (Food allergies rarely make asthma worse.) Latex allergy Mold allergy Pollen allergy Allergy Shots (Immunotherapy) If you are allergic, actions to avoid exposure are recommended whenever possible. This can be difficult if you are allergic to pollen, molds and dust mites. Allergy medications, including prescription nasal sprays and antihistamines, can help control symptoms. If actions to avoid exposure and medications are not effective, your doctor might consider allergy shots. Allergy shots have been shown to reduce symptoms associated with pollen, certain molds, dust mites and cat dander. Nocturnal Asthma Clinical Trials For more than 100 years, National Jewish Health has been committed to finding new treatments and cures for diseases. Search our clinical trials.