My daughter is 3.6 years, she coughs once she wakes up from sleep, sounds from throat while sleeping, coughs while laughing or playing.

Dr. Prashant K VaidyaHomeopath10yrs exp

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Coughing often becomes worse at night because a person is lying flat in bed. Mucus can pool in the back of the throat and cause coughing. Sleeping with the head elevated can decrease postnasal drip and symptoms of GERD, which both cause coughing at night. Snoring happens when you can't move air freely through your nose and throat during sleep. This makes the surrounding tissues vibrate, which produces the familiar snoring sound. People who snore often have too much throat and nasal tissue or ?floppy? tissue that is more prone to vibrate. The position of your tongue can also get in the way of smooth breathing. 

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