This does not sound like a post nasal drip at all but more like they both have whooping cough. Please do not give your children very strong cortisone medicines such as Betanoid which will do no good and only produce side effects. Actually no medicines really help for the cough of whooping cough, but you can try giving them each Aterax syruo which is a very safe antihistamine syrup 2.5ml at night for your 2 year old and 5ml at night for your 3 year old, speak to your pharmacist about this medicine. The cough can go on for 3 months in many cases but you will find that the Aterax syrup will help a lot.
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