4. Allergies
Allergies and puffiness go hand in hand and that includes your face. If you’ve got other allergy symptoms, your swollen face is seasonal or always occurs after you eat a certain food, then allergies are probably the culprit.
5. Thyroid
An underactive or an overactive thyroid can cause facial swelling. Other symptoms include weight gain, fatigue and heavy periods if you’ve got an underactive thyroid and weight loss, muscle weakness and irregular heartbeat if it’s overactive.
