My girl has kept on coughing for the past 2 months and was treated as 'sensitive bronchitis' by the doctor in Sanitorium. My girl then take 'Ventolin' and 'Dimetapp' 3 times a day. Until recently, I have a chance to consult a doctor in Australia and was advised that 'Ventolin' will have side effects when take it so frequently. So, I stop the western medicine and eventually try to let my girl take ' 冬蟲草' + 'Birdnest' (2 table spoons) every morning before breakfast and it works. Worth to have a try.