Puffy Red Under-Eye: What to Know

Allergic conjunctivitis commonly affects both eyes with itching, watering, and puffy lids. Conjunctivitis caused by infection may cause redness, gritty discomfort, and sticky discharge that makes the lashes cling together. Soap, cosmetics, smoke, contact lenses, or rubbing can irritate the delicate skin beneath the eye without causing an infection. A small blocked gland can also create a local tender lump. The appearance alone cannot identify the cause, particularly when only one eye is involved.

Do not rub the eye. Wash your hands before and after touching the area, pause contact lens use, and avoid eye makeup until symptoms settle. A cool clean compress can ease itch and puffiness; use a warm compress only if a clinician has suggested it for a tender lid lump. Do not share towels, pillows, or eye products. A pharmacist or clinician can help select treatment based on whether itching, discharge, or irritation is dominant.

Seek urgent care for reduced or blurred vision that does not clear with blinking, severe eye pain, light sensitivity, injury, chemical exposure, or swelling that makes it difficult to open the eye. Prompt assessment is also needed when redness spreads around the eye, fever develops, or a contact-lens wearer has significant pain or redness. Keep chemical exposure from worsening by rinsing with clean running water while arranging help.

Ask whether the pattern suggests allergy, conjunctivitis, or eyelid irritation, whether you should stop a product or lens type, and which symptoms would mean treatment is not working. Mention discharge, itching, pain, vision changes, and whether one or both eyes are affected.