Hello. At what time of day you experience more cough fits? Is there anything thing or any condition which increases it or relives it? How is your thirst and appetite??

Hello, Cough from 15 days with yellowish sputum suggestive of lower respiratory tract infection . Do you have other associated symptoms like fever , chest pain , body weakness etc..? It could be tuberculosis or pneumonia. Quit smoking if you have that habbit. Get blood and sputum examination done . you may need antibiotics . Chest x Ray is also required sometimes . Consult general physician .