Possible Causes of a Two-Week Cough
a. Viral infections (e.g., common cold, flu)
b. Allergies (dust, pollen)
c. Environmental irritants or postnasal drip

Reasons Cofdex Might Not Have Worked
a. Ineffectiveness if the cough is not dry
b. Underlying conditions not addressed by Cofdex

Alternative Treatment Options
a. Consider using an antihistamine if allergies are suspected
b. Steam inhalation and hydration for soothing the throat
c. Consult a healthcare provider for prescription options

When to Seek Medical Evaluation
a. Presence of fever, shortness of breath, or chest pain
b. No improvement after two weeks or worsening symptoms
c. History of asthma or chronic lung disease