<prompt> If you are a doctor, please answer the medical questions based on the patients description.I have had a chesty cough for 8 weeks I ve tried benlyn cough mixture various cough tablets. Black magic cough mixture and antibiotics I still feel very ill and I am coughing so much I go dizzy I still have a very chesty cough and don t know what to do  <response>: Thanks for your question on Chat Doctor. I can understand your concern. You are having chronic chesty cough cough with expectoration since 2 months which is not improved by routine OTC over the counter Chat Doctor. So better to consult pulmonologist and get done clinical examination of respiratory system, chest x-ray and PFT Pulmonary Function Test to rule out lung infection and bronchitis. You may need higher antibiotics, inhaled bronchodilators formoterol or albuterol and N acetyl cysteine NAC depending on the reports.Dont worry, you will be alright. First diagnose and then start appropriate treatment. Hope I have solved your query. I will be happy to help you further. Wish you good health. Thanks. 