What are the side effects of nasal cromolyn?

Dr. Jeanne Morrison, PhD
Family Practitioner

The most common side effects people taking nasal cromolyn experience are irritated nasal passages (burning or stinging sensation), red-tinted skin, more sneezing than before the medication, and sometimes headaches or stomachaches. Some people have problems with the dripping of mucous down the throat, cough occasionally, or have an unpleasant taste. It is important to contact a doctor if you have a rare but serious allergic reaction to the medication. An allergic reaction to nasal cromolyn would involve swelling in your face or facial features, difficulties breathing or wheezing, itchy skin that possibly has hives, and difficulty swallowing. Other rare but serious symptoms include nosebleeds and rashes. Call a doctor if you experience any side effect that is not going away or becomes severe.

Donna Hill Howes, RN
Family Practitioner

Side effects of cromolyn delivered by metered dose inhaler may include irritation or dryness of the throat, an unpleasant taste, coughing, wheezing, and nausea. Side effects of cromolyn nebulized solution may include nasal congestion, cough, and sneezing. 

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.