my mom keeps coughing flem for 2 weeks doesnt seem to get better i have it too

If the cough last for more than 3 weeks you better go to the doctor just to check it. You should avoid things that can stimulate coughing like foods and drinks that can irritate your throat. You should try to avoid drinking cold drinks and STOP smoking if you are or your mother. You can try buying meds that are classified as expectorant or mucolytic to aid with the flem but you should go consult your doctor. I experienced coughing with flem for almost more than a month when i consulted with my doctor he prescribed a antiobiotic and expectorant type.. i was thinking that my flem was prolonged due to the cold environment which i was not used to and still i kept drinking cold drinks.. anyway hope you and your mom get well soon!