Yep apparently by the age of 1 its usually fixed itself and if not it will at some stage.......so guess I shouldtnt stress too much.I just hadnt ever heard of that before......aparently quite common....makes it a little harder when they have colds and coughs.our dr referring Brooke to specialist about all the resitary probs she has..really glad he doing that because she has had loads of antibiotics.I never realised that blood tests can confirm whether they have viral or bacterial infection....