Allergic rhinitis: Allergic rhinitis and post nasal drip can cause frequent persistent coughing, and may improve with use of an over the counter non-sedating antihistamine such as Claritin or Zyrtec. Allergic rhinitis is often accompanied by hyper-reactive airways/asthma, which may require a prescription medication. Your pediatrician can help you sort this out. Best wishes...
Answered 3/24/2020
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