I have had under eye puffiness for about 2-3 weeks now. i want to know what's causing it and some treatments for it. thank u and god bless you :)?

...: Without a history/physical, a personal diagnosis/treatment plan is not possible. For general information which may or may not be applicable in your case: Puffiness under the eyes can be a symptom of allergies. Other symptoms of allergies might include watery eyes, runny nose, sneezing, feeling "run down" or tired. Over-the-counter allergy treatments generally contain antihistamines.

Puffy eyes: A common cause of bilateral eye puffiness are common allergies. Associated symptoms include itchiness, redness and tearing of your eyes. Treatment of allergic reactions is usually achieved with antihistamine medications.