i am sick with cold for 2 weeks and cough over a week. My doctor diagnose me that i have upper respiratory infections, The doctor presrcibed me z-pak, musinex and otc benadryl for allergy yet i am not getting any better. My chest x-ray result is fine. I am coughing hard with mucus, chest pain from too much coughing, sneezing, runny nose during the day and clog nose at night time. I really dont know what s going on with my body. Any help or advice is highly appreciated! Thanks, Angerlina D