I have been rubbish at taking my asthma inhalers lately. It only ever manifests itself as a cough and I've never (touch wood) had an attack. Anyway cough is coming I think so am determined to do my inhalers every day as I'm meant to but also measured my peak flow and it's 300 when for my height it should be 500. Should I be worried - don't think I can get doc appt until new year now. Presumably my brown inhaler will have had a cumulative effect by then so it should be better?