Problem with certain asthmatic medications is that they cause Acid Reflux which can scare the lung, and as I recently found. Can cause cancer of the oesophagus. Having had three different CT scans, standard, special one at Mount Vernon Specialist cancer hospital, where injected with radioactive substance, and a dye injected one, plus five various endoscopes, one where large biopsy taken, confirming tumour. Operating to remove 30cm of oesophagus and 10cm of stomach, and join two together again. Because of health conditions, chance is 2/1. Better if nil if dont have it. Surgery on 5th May, take year to fully recover. ITU upto week, they HDU. In 3/4 weeks then nursing home 1/2 months. When eating properly, 6 kiddy portions per day, as stomach be much reduced.