So about a month ago I dropped my nic level from 6 to 3. I ordered a bottle of liquid online but when I ordered they didn't have a 3 and they also didn't have any 0 only 6, (close out sale) I assumed that with it being a higher nic level I'd just vape less and it wouldn't be a problem. I was wrong I've been coughing with every hit. I remember reading before that leaving a bottle open to breathe was actually a bad thing to do because nicotine is volatile and will break down. I've also heard that trying to speed steep a juice in a warm water bath also makes some of the nicotine break down. Can I make some of the nicotine in this juice "evaporate" away, or is there some other way to lower the nic content without cutting the juice with some VG? I don't want to weaken the flavor. Also, this is a juice I've vapped several times before so I'm pretty confident the cause of the coughing is the nic and not anything else in the juice. I don't know if they've changed any ingredients, it tastes as good as other bottles I've had and the ingredients just say PG/VG flavorings and nic, so it's not helpful