S.M.
Could be allergies, could be sinus problems. I've had allergy problems since toddlerhood, so I understand how uncomfortable your little one must be! They generally won't do a full allergy testing panel till after age 3, but an allergist can definitely help you get the symptoms under control for the time being if they determine its not sinuses at your regular doctor, or tell you if it's sinus related. The coughing can also be a form of asthma....don't panic. Asthma can be directly related to allergies, and isn't always in the "asthma attack" form you think of. It often shows up as a persistent cough, especially at night. Most allergists treat both, as they are closely related. There are great medications out for these types of problems now days, so there is no reason for your kiddo to suffer!