Allergy tests are not very likely to give you many answers, he is still a bit young and some of the tests might be "false negative" when they are so young. Did the doctor investigate for enlarged adenoids? Or an anatomical abnormality of the sinuses? I suggest that you discuss those possibilities with the ear, nose and throat surgeon. Good luck and I hope your son gets better soon!
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.