I agree with you that your daughter's blocked nose and cough strongly suggest that she has a post nasal drip problem. She has had many antibiotics and has not improved. It is possible that your daughter has enlarged and infected adenoids. It would be best to take her to see an ENT specialist for an opinion. In the meantime try to keep her nose as clear as possible by using a saline nose spray such as Sterimar at least twice a day.
The information provided does not constitute a diagnosis of your condition. You should consult a medical practitioner or other appropriate health care professional for a physical exmanication, diagnosis and formal
advice. Health24 and the expert accept no responsibility or liability for any damage or personal harm you may suffer resulting from making use of this content.