Dear Mr Malhotra ! Good morning. I am Dr Shareef answering your query. Apart from the effect of acid fumes long back, you possibly have also got allergic bronchitis, which is causing seasonal problems with your breathing. If I were your doctor, I would also advise you for a complete blood count, along with an absolute eosinophil count and a stool test for ova and cyst. Depending on the reports, possibly I would give you a course of diethyl-carbamazepine for twenty one days, and also deworm you. This might give you better relief. Also go for regular steam inhalation daily two to three times a day. Over and above, go for some active breathing exercises depending on your medical fitness for such exercise. With all these efforts, I hope you will get improvement, and gradually you can wean yourself off from your medications under the guidance of your treating doctor, reserving these during the periods of attack. I hope this information would help you in discussing with your family physician/treating doctor in planning your treatment. Thanks for using the health care magic forum for your query on health. Wishing you an early recovery. Dr Shareef.