1 doctor weighed in:

Will allergy medicine help with a cold?

1 doctor weighed in
Dr. Michael Zacharisen
Internal Medicine - Allergy & Immunology

In brief: Not much

Allergy medications such as Claritin, Allegra and Zyrtec work by blocking antihistamine which is not part of the cold/respiratory infection process so not much help.
Older antihistamines like Benadryl (diphenhydramine) may help some with irritant cough and sleep from drowsy side effect. Decongestants such as Sudafed may help relieve some of the nasal congestion but avoid in children

In brief: Not much

Allergy medications such as Claritin, Allegra and Zyrtec work by blocking antihistamine which is not part of the cold/respiratory infection process so not much help.
Older antihistamines like Benadryl (diphenhydramine) may help some with irritant cough and sleep from drowsy side effect. Decongestants such as Sudafed may help relieve some of the nasal congestion but avoid in children
Dr. Michael Zacharisen
Dr. Michael Zacharisen
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