Redness and swelling of the whites of the eyes may be caused by physiological factors, or may be caused by infectious conjunctivitis, allergic conjunctivitis, etc. Clinically, it can be relieved by adjusting the lifestyle, medication and so on. 1. Physiological factors: If there are often stay up late, long-term overuse of the eyes and other bad habits, it is easy to lead to eye fatigue and the white of the eye congestion and edema performance. In this case, it is recommended not to stay up too late, patients with regular work and rest, to avoid long-term eye fatigue, after adjustment can return to normal. 2. Infectious conjunctivitis: this kind of disease will also appear the symptoms of conjunctival congestion and edema, conjunctivitis patients usually need to use antiviral drugs (acyclovir, etc.), antibiotics (erythromycin, chloramphenicol, etc.), and other drugs according to the situation for treatment. 3. Allergic conjunctivitis: contact with dust mites, pollen and other allergens trigger an allergic reaction, can also cause eye congestion and edema, the whites of the eyes look red and swollen, this situation need to try to avoid allergens, if necessary, follow the doctor’s instructions for the use of anti-allergy drugs such as Olopatadine hydrochloride for treatment. The white of the eye may also be caused by other reasons, if the lifestyle adjustment is ineffective, it is recommended to go to the hospital in a timely manner to identify the cause of the disease, and comply with the doctor’s instructions for treatment, medication, do not blindly use their own medication.