Why Are the Areas Under My Eyes Red?
The honest verdict
It can be an allergy — but not always
Redness under the eyes is sometimes caused by an allergy, but more often it is due to irritation or a chronic skin condition. Contact dermatitis from skincare products, makeup, or eye drops is a common allergic cause. However, many cases stem from simple irritation — rubbing the eyes, dry air, or harsh cleansers — or from eczema (atopic dermatitis), which is not an allergy but a chronic skin condition. True allergic reactions usually cause itching and swelling alongside redness and often involve other areas of the face or body.
This is a general research summary, not a diagnosis. It can't tell you what's causing your symptom — a clinician can.
Check this first
When redness under eyes is an emergency
Most of the time this can be handled calmly. But a few signs mean you shouldn't wait. Match what you're seeing to the right level of care below.
If any emergency sign below is present, call 911 or go to the ER now.
- Emergency
Redness under the eyes with swelling of the face, lips, or tongue, and trouble breathing or swallowing — call 911; this can be anaphylaxis.
Call 911 or go to the ER now
- Emergency
Redness with eye pain, vision changes (blurring, double vision), or sensitivity to light — go to the ER or see an eye doctor immediately (possible orbital cellulitis, glaucoma, or uveitis).
Call 911 or go to the ER now
- Urgent
Redness that spreads rapidly with fever, warmth, and tenderness — seek urgent care (possible periorbital cellulitis).
Get seen today — urgent care or same-day visit
- See a doctor
Redness with discharge (pus or thick mucus) from the eye, especially if the eye is stuck shut in the morning — see a clinician (possible conjunctivitis or infection).
Book a routine visit with a clinician
- See a doctor
Redness that persists for more than two weeks despite avoiding irritants and using gentle skincare — see a dermatologist or eye doctor.
Book a routine visit with a clinician
When in doubt, err toward getting seen. These tiers are a general guide, not a substitute for a clinician's judgment about your specific situation.
Key facts
The skin under the eyes is the thinnest on the body — about 0.5 mm thick — making it more prone to irritation, redness, and visible reactions.
Atopic dermatitis (eczema) affects about 10-20% of children and 1-3% of adults worldwide, and the eyelids are a commonly affected area.
Allergic contact dermatitis accounts for about 20% of all cases of eyelid dermatitis, with fragrances and preservatives being the most common triggers.
What's causing it
The same symptom can come from very different places. Here are the usual suspects for Periorbital area — the skin beneath the eyes, extending from the lower eyelid to the upper cheek, tagged by mechanism and how common each one is — so you can see where an allergy actually fits.
Irritant contact dermatitis
The thin, delicate skin under the eyes is easily irritated by harsh facial cleansers, makeup removers, retinoids, or scrubbing. This causes redness, dryness, and sometimes flaking. It is not an allergic reaction — it is direct irritation of the skin barrier. Switching to gentle, fragrance-free products often resolves it.
Atopic dermatitis (eczema)
Eczema frequently affects the eyelids and under-eye area, especially in people with a history of dry skin, asthma, or seasonal allergies. It causes red, dry, itchy, or scaly patches. Eczema is a chronic inflammatory skin condition, not an allergy, though it can be triggered by irritants or allergens.
Rubbing or mechanical irritation
Frequent eye rubbing from fatigue, dry eyes, or seasonal allergies can physically irritate the thin under-eye skin, causing redness and temporary swelling. This is mechanical irritation, not an allergic reaction, though it often accompanies allergy symptoms.
Allergic contact dermatitis
An allergic reaction to ingredients in eye creams, mascara, eyeliner, nail polish (touching the eyes), or eye drops can cause redness, swelling, itching, and sometimes small bumps under the eyes. Common allergens include fragrances, preservatives (formaldehyde-releasers), nickel, and latex. The reaction typically appears 12-48 hours after exposure.
Periorbital cellulitis (infection)
A bacterial infection of the eyelid and skin around the eye causes redness, swelling, warmth, and tenderness. It can follow a minor cut, insect bite, or sinus infection. Periorbital cellulitis requires prompt medical treatment with antibiotics and should not be treated at home.
Where allergy actually fits in
When a symptom like this is allergy-driven, it usually points to a specific trigger. Knowing which one is the difference between guessing and actually fixing it.
Redness under the eyes is sometimes caused by an allergy — most often allergic contact dermatitis from skincare products, makeup, or eye drops. Common allergens include fragrances, preservatives, nickel, and latex. True allergic reactions typically cause itching, swelling, and redness, and may involve other areas of the face. However, many cases are not allergic: irritation from harsh products, eczema, or simple eye rubbing are more common. If redness occurs with other allergy symptoms like sneezing, itchy eyes, or hives elsewhere on the body, an allergy is more likely. An allergist can perform patch testing to identify specific contact allergens.
Relief you can try at home
If your symptom is mild and you have no red-flag signs, these gentle steps often help. They soothe — they don't replace figuring out the cause.
- 1
Stop using potential irritants
Discontinue all eye makeup, eye creams, facial cleansers, and other products applied near the eyes for 3-5 days. Use only plain water or a gentle, fragrance-free cleanser. This helps the skin barrier recover and identifies if a product is the cause.
- 2
Apply a cold compress
A clean, cool, damp cloth applied gently to the under-eye area for 5-10 minutes can reduce redness and soothe irritation. Do not rub or press hard. Repeat up to 3 times daily as needed.
- 3
Use a gentle moisturizer
Once the skin is clean and dry, apply a thin layer of a fragrance-free, hypoallergenic moisturizer or a petrolatum-based ointment (like plain Vaseline) to protect the skin barrier. Avoid products with retinol, acids, or fragrances near the eyes.
- 4
Avoid rubbing your eyes
Rubbing worsens redness and can damage the thin under-eye skin. If itching is a problem, a cold compress or an over-the-counter antihistamine (oral, not eye drops unless directed) may help. See a clinician if itching persists.
Stop any step that makes things worse. If the symptom isn't easing within a few days, check in with a clinician.
When to see a doctor
See a clinician if redness under the eyes is accompanied by eye pain, vision changes, discharge, or swelling that spreads rapidly. Redness with fever, warmth, or tenderness may indicate an infection requiring antibiotics. If the redness persists for more than two weeks despite avoiding all potential irritants and using gentle skincare, a dermatologist or allergist can help identify the cause — whether it is eczema, allergic contact dermatitis, or another condition. If you have a known severe allergy and redness appears with facial swelling or trouble breathing, treat as a potential allergic reaction and seek emergency care.
Frequently Asked Questions
Yes, but it is not the most common cause. Allergic contact dermatitis from a product applied near the eyes (like eye cream or mascara) can cause redness limited to the under-eye area. However, allergic reactions often also cause itching, swelling, and sometimes small bumps. More often, redness under the eyes is due to irritation from rubbing, dry skin, or eczema — not an allergy.
Irritant contact dermatitis is a direct chemical or physical injury to the skin — it happens immediately or after repeated exposure to a harsh product (like a strong cleanser or retinoid). Allergic contact dermatitis is an immune reaction that develops 12-48 hours after exposure to an allergen (like a fragrance or preservative). Both cause redness, but allergic reactions tend to itch more and may cause swelling or tiny blisters.
Yes — seasonal allergies (allergic rhinitis) can cause redness and puffiness under the eyes, often called 'allergic shiners.' This happens because congestion from the allergic response slows blood flow in the small vessels under the eyes, leading to a dark, reddish-purple discoloration. It is usually accompanied by sneezing, itchy eyes, and a runny nose.
It can be. Periorbital cellulitis is a bacterial infection of the eyelid and skin around the eye that causes redness, swelling, warmth, and tenderness. Conjunctivitis (pink eye) can also cause redness of the eye itself and the surrounding skin, often with discharge or crusting. If redness is accompanied by eye pain, fever, or discharge, see a clinician promptly.
Eczema (atopic dermatitis) under the eyes typically appears as red, dry, scaly, or itchy patches. It often comes and goes, and people with eczema usually have a history of dry skin, asthma, or allergies. Eczema is not an allergy, but it can be triggered by irritants, dry air, or stress. A dermatologist can diagnose eczema based on the appearance and location of the rash.
Medically reviewed by
Dr. Chet TharpeMD
Last reviewed July 2026
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Read moreStop guessing which trigger is behind it
If your redness under eyes keeps coming back and an allergen might be the cause, testing tells you what you actually react to. Curex offers at-home allergy testing and immunotherapy so you can treat the trigger, not just soothe the symptom.
- At-home allergy test kit — no clinic visit
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This content is for informational purposes only and does not constitute medical advice, diagnosis, or treatment. It cannot tell you what is causing your redness under eyes or whether it is an allergy. If you have any emergency sign — trouble breathing, fast-spreading swelling, sudden weakness or confusion, or severe pain — call 911 or go to the nearest emergency room. For anything that is new, worsening, or persistent, see a licensed healthcare provider. Curex offers at-home allergy testing and immunotherapy for confirmed environmental allergies; it does not diagnose this symptom or provide emergency care.
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