I've only been taking Xiidra for about a month and occasionally have runny eyes. The bad taste in my mouth lasts all day, everyday. I have developed a dry cough that seems to go hand in hand with the bad taste it leaves in my mouth. Do the side effects ease up over time? I was on Restasis for 4 years and my eyes burned 24/7 and I had no improvement in my vision. The only reason I stayed on that med was to protect my corneas. I can finally see again after just a short time on Xiidra and would hate to have go off of it because of the annoying side effects.