I threw away the wrong advair discus and didn't notice as I took one dose of my expired inhaler, ( I know I should have discarded) but i opened it 10/07. It's only good for 30 days whether or not there are any doses left, but the lot expiration is 09/08. I feel sick, I've been coughing and feel a little light headed. Is this the result of using the expired inhaler?




