I've been dealing with water retention on my lower eyelids/cheekbone region since I was a toddler. I don't think it's allergy related, as I've been on medications and I've tried changing my diet as well. I've tried cold and hot therapies, I've tried under eye creams. I've considered that I may have a thyroid issue, or even a blockage in my sinuses which might prevent the lymph fluid from draining properly from under my eyes, but am unsure. What is the best permanent fix for this issue?