Hello Doctor, My 9 year old son is struggling with cold, especially at nights, his nose gets stuffy and hard to breathe. In the day he is in better state and so we thought he will overcome the problem with time, but it seems to be getting harder on him. Of let, we see he is having hard time to catch the breath. How should we take this further, who can guide us treat this (doctor specialist in), we want child to overcome this problem. Appreciate you advice. Thank you, Sangeetha