The redness inside the eyes may be caused by overuse of eyes, conjunctivitis, dry eye, trauma, etc. Patients can be relieved by physical therapy, medication, etc. The specific treatment is related to the patient’s condition. 1. Excessive use of eyes: long time use of cell phones and other electronic products, working and living environment, dim light or glare, etc., can lead to excessive use of eyes and visual fatigue, the patient may appear conjunctival congestion, manifested as redness of the eyes. Patients need to use their eyes reasonably, ensure that the eyes rest, avoid using the eyes in a dim or bright light environment to relieve eye discomfort. 2. Conjunctivitis: Bacteria, viruses and other infections in the eyes lead to conjunctivitis, patients may appear conjunctival congestion, photophobia, tearing and other symptoms, patients can follow the doctor’s instructions to use levofloxacin eye drops, tobramycin eye drops and other medications, to control the inflammation, and to promote the recovery of the condition. 3. Dry eye: dry eye patients because of insufficient tear synthesis or environmental high temperature leads to tear evaporation too fast, the patient’s eye surface dryness, can appear conjunctival congestion, can also be accompanied by eye dryness and other symptoms of discomfort, the patient can comply with the doctor’s instructions to use the sodium vitrate drops and other medications, lubricate the surface of the eye, to relieve the discomfort of the eye. It is recommended that patients with obvious eye congestion consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.