I've had a cough for around 7 weeks now, i sometimes cough little clear jelly like balls up. what could this be?

Mgt: Chronic inflammation of the airways may be one cause. The material can be sent for testing.

Difficult: Persistent cough has a very long list of potential causes. These involve problems with the GI system such as heartburn with acid reflux, vocal cords, nose and sinuses where post-nasal drip is exacerbating, trachea/lungs including cough-variant asthma, chronic bronchitis or eosinophilic bronchitis. The mucus suggests nose/sinus or respiratory involvement.