What should i do if i have had a cough for three weeks?

Cough: In general, a symptom of coughing can first be addressed by over the counter measures. Cough specific syrups or tablets are readily available. Dry coughs are just as common as wet coughs. Giving the cough ample time to clear is advisable but if you develop fevers, shortness of breath, chest pains, or bloody sputum, it may be time to see your doctor.