Need some information regarding sulphites and asthma. At the weekend after drinking white wine (something I don't usually do) I woke up feeling like I was choking. I had two puffs of ventolin which did partially relieve it but then had a coughing fit which eventually casued me to vomit. I almost immediately felt better and within the hour was back to normal. The following morning it was as if nothing had happened. I have heard about a relation between sulphites which appear in certain food colourings and asthma attacks. Does anyone have any similar experiences and/or advice and information about this.