You may be surprised to learn that water-heavy foods penetrate cells better than water alone. Therefore, eating foods with high water content, like cucumbers, can help reduce surface dryness and help strengthen the cell membrane, which plumps skin cells and helps reduce fine lines. You may also want to try other high-zinc foods like almonds, chickpeas and shellfish.
What to eliminate when you're dehydrated and irritated? Avoid alcohol, spicy foods and caffeinated beverages as often as possible.