Puffy eyes are a common problem, which makes you look tired, older and even sick. The reasons for the same could be any of the following –

Allergies 

Some allergies or colds cause inflammation and pressure in your sinuses, further leading to swelling and puffy eyes.

Dehydration 

If you consume too much salt or alcohol, you can have a sagging appearance under your eyes.

Fatigue 

One of the main causes of puffiness, sagging or dark circles is lack of sleep. Less sleep causes fluid build-up under the tissue, making them look fuller, swollen and puffy.

Sun Exposure 

Excessive sun exposure can break down collagens, make your skin sag and drop, and create permanent sagging and puffiness.

How to Treat It? 

There are several ways to treat eye puffiness, like cold compression, medication, minimum sun exposure and hydration. So, yes, you can treat your eyes by drinking water. As dehydration can also cause puffiness and swelling, have plenty of water. It plumps your skin back and relieves you from puffiness.