I am 43 and was diagnosed aged 18. Until very recently I have been using Qvar and Ventolin to treat my Asthma. Lately my doctor has said my asthma has become more chronic because I am older and that long term use of Ventolin may have caused my airways to tighten permanently. This has really concerned me as I was never made aware that this medicine (that I have relied on for so many years) could have caused me permanent damage. I'm wondering how long have the NHS been aware of this?