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A member asked:
How long does it take it for allergy medicine to take effect?
A doctor has provided 1 answer
30-60min: Oral antihistamines take anywhere between 30 to 60 minutes to start working. Steroid nasal sprays may take up to 2 weeks, antihistamine nasal sprays take 20 minutes, and other medications can take longer. If your symptoms are bad, you may not notice a significant effect right away from the medications.
Answered 9/20/2016
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