I am having persistent cold over the past few months. please suggest me a medicine.?

MD visit: People in your situation need to see their primary md or an ent!it could very well be chronic sinusitis or even new onset allergies (hard to tell with brief details). I tell people that they can can try salt water flushes (believe it or not - it works well - neilmed sinus rinse is one - otc). The other otc med is Mucinex (guaifenesin) (which helps loosen the phleghm and works well with the salt water flush).

See doctor: Cough can be caused by multiple causes. Cough suppressants just cover the symptom but you need to find out the underlying cause with the help of a medical professional.