Look to the real causes of this problem - insufficient water intake and low levels of essential fats in the diet. First and foremost, boost your intake of good, clean water. Set a goal to drink at least eight glasses a day. If you weigh more than 135 pounds, you need even more. Drink an ounce of water for every two pounds of body weight.
Adequate hydration supports the body's ability to make watery tears.
But make sure you're not drinking tap water. It's full of chemicals and bacteria. Instead, buy bottles of distilled water or invest in a good distiller. Drink plenty of clean water every day. If you were stranded on a desert island, you could survive more than a month without food.