Thank you for contacting HCM First big mistake you made is taking medications from chemist that too without prescription. Now coming to your problem, you haven t given detailed history like are you suffering or suffered from fever, breathlessness, noisy and fast breathing if your answer is no to above symptoms then not to worry. most probably you are suffering from post viral fever bronchitis which will subside gradually without any medications. Mean time do the following things 1.Wash your hand for 4-5 times a day. 2.Steam inhalation for 4-5 times a day. If your symptoms not subsided within 3 weeks or you developed any new symptoms like shortness of breath, fever, fast noisy breathing then you must have to consult your near by physician. Regards.