Liz. Invisalign Attempt 2…Day 8. Finally after a course of antibiotics and no signs left of the cough it seemed time to try the new trays (Set 2) provided by Invisalign, treated in a “different way”. That is all the information I have. Day 3 I was getting a nasty bitter taste with the trays in but drank plenty of water and it seemed to pass, and I am  now rinsing the trays every 2 days in a mixture of water and Listerine to keep them fresh. I am not going to go anywhere near the Retainer Brite product again that contains persulphates. Drinking what seems enormous amounts of water throughout the day seems to prevent the trays feeling big and stratchy, and second time around I am having the odd sip of tea followed by a slosh of water as cannot go completely tea less….impossible.  I dread the thought of 2 years of these things but do take comfort in my friend’s fantastic results, and have to remind myself of the end goal. I look forward to “Tray Change Day”, I will have 50 more of these!