Hello Doctor, I have regular cold , sneezing and cough probelm. it has been since my childhood as i had TB at the age 3. Apart from regular cold and headache , i have constant and continous white phelgm/sputum and when i intake cold stuff , such as hard drink with chilled soda or beer , i feel shortness of breadth in night time and therefore i budetrol rotocap and Zyrcold for cold but nothing is working and it is affecting my 10 yrs old son , even he has suffering from cold and nose blockage. Please suggest.