Irene P. wrote:... I sleep on my left side, and in the morning I have fluid buildup in my left eyelid and an area about 1/2 inch under my lower eyelid (not directly under eye). It's no longer going away, and it's making my face look lopsided. (Yes, it is vanity!) Does anyone know of any treatments for this? ...
I do not think it's vanity. Fluid buildup (edema) like this is not normal and should not happen. There are numerous things that might contribute to this:http://www.mayoclinic.com/health/edema/DS01035/DSECTION=causes
So, as with any unusual symptom, I recommend you discuss this with your doctor. It might be nothing. However, it certainly does not hurt to check.
As to what you might be able to do. First, I would (if you can) try to sleep on my back or right side for a while during the night. This might help. Second, you can try to rub the area on the face with a warm towel (dampen it a little and warm it in a microwave). Not hot. You don't want to burn the skin. Instead you are attempting to warm the skin to allow more blood flow. This might allow the fluid to drain away.
Just a couple thoughts. But whatever you do, you should discuss it with your doctor. It might be nothing, but I would rather your doctor was looking after it.