Puffy eyes are a condition where the eyes begin swelling due to different factors. The skin around the eyes is very thin and is full of blood vessels which make it very sensitive.

Causes of puffy eyes

Heredity
Fluid retention such as due to changes in weather or hormone levels
Allergies or dermatitis, especially if puffiness is accompanied by redness and itching.
Late Nights and Stress. Yes, stress can wreck havoc on the eyes too. So can lack of sufficient sleep.
Under-eye puffiness is usually only a temporary cosmetic concern and rarely a sign of a serious underlying medical condition.

How to get right puffy eyes and home remedies to treat puffy eyes

Wash face with ice cold water
Store creams in the refrigerator, as the coldness will also help reduce puffiness
Drink plenty of water to clean out your system
Place two slices of cool cucumber on the eyes for few minutes
Make sure you get enough sleep with regular timings
Place strips of grated potato under your eyes to help reduce swelling
Remove Makeup Every Night:Be sure to remove all makeup cleanly before you sleep.
Stop Using Irritating Products. If you suspect your new eyeshadow or eye cream is the offending agent, stop using them for sometime and see if the puffiness goes away.