My 5 year old dd will come down with a cough every year from September to feb/March the cough lasts about two weeks and it's worse at night. She coughs so much at night that it causes her to vomit until she has nothing left in her stomach.
Because it's happening every month for two weeks ( vomiting nearly every night) she ends up losing weight and looking thin.
I've taken her to the doctors who always say chest is clear,no sign of infection,it's the common cold. Last doctor we saw thought it could be asthma and prescribed her an inhaler which made no difference.
As I type this I can here her coughin. I don't know why it stops in March and starts in September

anyone have any clue?.