Conversation: The conversation between human and AI assistant.
[|Human|] MY DAUGHTER HAVING COUGH FOR 3 WEEKS NOW,THE FIRST WEEK I BROUGHT HER IN AN DOCTOR AND THE DOCTOR GAVE HER ANTIBIOTIC.SHE FINISHED  TAKING THE ANTIBIOTIC FOR 1 WEEK.BUT AFTER THAT SHES STILL HAVING COUGH BUT MAYBE IN ONE DAY SHE WILL JUST HAVING COUGH MAYBE 5 TIME
[|AI|]  Hi, welcome to Chat Doctor forum. Usually, we do a sputum AFB to rule out tuberculosis if cough persist more than 2-3 weeks. But, since she responded to treatment, and cough has come down, we can try a cough suppressant like dextromethorphan, and antihistamines for 5-7 days(I guess she has no fever/yellow sputum). It may help. If cough still persist, you please see your doctor and do sputum examination.Meanwhile, avoid dusty/cold environment. I hope you will find this information useful. Thank you.