Swollen and itchy eyes can be caused by bacterial infections or the discomfort caused by allergic reactions of the eyes.
1. Bacterial infections: swollen and itchy eyes are most commonly caused by bacterial infections such as conjunctivitis and blepharitis, mainly due to eye infections caused by rubbing the eyes with contaminated hands, cleaning eye makeup such as eyeliners and mascaras, and wearing contact lenses without cleaning up the hands, etc., resulting in itchy, red, swollen, hot, painful eyes and other symptoms.
2. Allergic reaction of the eyes: due to eye contact with common external allergens, including willow, pollen, dust and animal fur and other allergic substances, resulting in allergic conjunctivitis, and sometimes there is an increase in eye secretions, and sometimes not only caused by eye allergies, but also accompanied by generalized skin allergic reactions.
Swollen eyes, but also itchy, there may be other reasons, it is recommended to consult a doctor in a timely manner, under the guidance of the doctor to determine the cause and standardized treatment.