Your daughter probably has tracheitis as a result of the persistent post-nasal drip with the viral upper respiratory infection she had recently.Tracheitis is an inflammation of the trachea or windpipe and this takes long time to heal after a viral infection.It often helps to give a short course of a safe cortisone such as Prelone syrup for 5 days. Other medicines do not help much. You can try the Demazin syrup if you wish, although I am not very happy about giving children medicines containing phenylephrine.I really want you to use the saline nasal spray which is much safer.
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