For a quick fix, place cucumber slices (for astringency) or chilled caffeinated tea bags (for tannins) on your eyes for 15 minutes to tighten skin and absorb fluid. But eat vitamin C-rich foods to support collagen production.Tap the eye area lightly while moisturizing to help dissipate excess fluid, says home-spa doyenne Janice Cox, author of "Natural Beauty at Home." To reduce water retention, drink water, limit alcohol, and get more rest.