Dear doctor i am 31 years old i have cold, cough with sputum and sore chest since 2 month, symtoms are like on and off when i take medication it off for 2 days, and when i have head bath with in 24 hrs i get cold and cough with sputum , i cont able to take ice cream, sweets, chocolates, even tea also . i will increase the cough whilei take sweet or sugar contents. i dont have fever, body pains, sweatings, weight loos, chest pains. may i known what is the main cause for this .please prescribe