cough in children can have many reasons. recurrent infections allergies asthma can be important ones. please get your child thoroughly examined by expert paediatrician. with few tests the cause of persistent bed time cough can be confirmed.
my 4 year old has been coughing only in the late evening during the night and until mid-morning for many weeks now. . i usually give him 1 to 2 l'il critters gummy vites that have echinacea vitamin c and zinc in them every day. he doesn't cough during the day. he had a cold a few weeks ago which has since gone away except for this cough. it actually starts late in the evening right around bedtime continues off and on during the night when he changes positions and then starts to go away around mid-morning. . . i would say it's probably more of a dry hacking cough. could it be whooping cough?