There is a strong possibility that your son is allergic and in particular may have a nasal allergy with a post nasal drip or possibly early signs of asthma. It would be best to ask your paediatrician to see him.
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.