Eye redness from irritated or inflamed blood vessels on the surface of the white part of the eye, commonly called bloodshot eyes.

Nonprescription eye drops called artificial tears or containing an antihistamine may help. Don't use eye drops for red eye (Visine, Clear Eyes) because they may cause rebound redness.

See a healthcare professional right away if:

• Changes in vision.
• Sensitive to bright light.
• Feeling as if something is in the eye.
• Can't open or close the eye.
• Headache, nausea or eye pain.

Make an appointment to see a healthcare professional if:

• Lasts longer than a few days.
• Thick or almost continuous pus.