1.Do a complete blood examination like CBC, ESR, Mantoux test, X ray chest, Sputum examination for AFB.
2.Consult Chest physician with report. Do warm saline gurgling 3-4 times daily,
3.Avoid smoking if you smoke.
4.If all reports are normal, it could bedue to allergic bronchitis.do an allergy test after consulting Allergist/Immunologist and follow the advice
5.Consult me for further advice