Pink eye, or conjunctivitis, is inflammation of the clear membrane that lines your eyelid and covers the white of your eye. Most cases are caused by a virus, and like a common cold, they usually run their course on their own. Home care focuses on comfort and hygiene: cool compresses for itching and swelling, warm compresses for crusting, artificial tears, and careful hand washing to avoid spreading it to your other eye or to other people.
What Actually Causes Pink Eye?
The cause shapes everything about how you treat it. Conjunctivitis has three main types, and they do not behave the same way.
Viral conjunctivitis is the most common form. It usually starts in one eye and often spreads to the other within a few days. The discharge tends to be watery rather than thick. It commonly shows up alongside a cold or sore throat, and it is highly contagious while symptoms are active.
Bacterial conjunctivitis tends to produce thicker, yellow-green discharge. Eyes may be stuck shut in the morning. It can affect one or both eyes. Some cases clear without treatment, and some need antibiotic drops — a decision that generally belongs with a clinician, not a home remedy.
Allergic conjunctivitis shows up as itching in both eyes, often with watery discharge and puffiness. It is not contagious. It flares with pollen, pet dander, dust, or mold and often comes with sneezing or a runny nose.
There are also irritant causes — chlorine, smoke, or a foreign object — that produce redness and tearing without infection. These usually settle once the irritant is gone.
One clarification worth knowing: redness alone does not tell you which type you have. A clinician distinguishes them by history, discharge character, and sometimes a swab, because the treatment differs.
How To Relieve Pink Eye Symptoms At Home
Home care is mostly about comfort and stopping the spread. None of these measures shorten a viral infection, but they ease the symptoms while your body does the work.
Compresses
Use a clean, soft cloth soaked in water, wrung out, and folded over the closed eye. For itching and swelling, cool water feels better. For crusting and the stuck-shut feeling, warm — not hot — water helps loosen dried discharge.
Use a separate cloth for each eye. Never reuse a cloth without washing it. Discard or launder it after use.
Artificial tears
Preservative-free lubricating drops can soothe grittiness and dilute irritants. They do not treat infection. Avoid drops marketed for redness relief — those contain vasoconstrictors that shrink blood vessels temporarily and can cause rebound redness with extended use.
Hygiene that limits spread
- Wash hands with soap and water often, especially after touching your eyes.
- Do not share towels, pillowcases, or washcloths.
- Change pillowcases frequently while symptoms last.
- Replace eye makeup and discard anything used during the infection.
- Clean eyeglasses regularly; avoid contact lenses until the eye is fully clear and a clinician says it is fine to resume.
What not to do
Do not use a homemade saltwater rinse or any solution that has not been prepared for eye use. Do not put breast milk, honey, or herbal preparations in the eye — none of these are supported by clinical evidence, and some can introduce infection or cause chemical irritation. Do not use leftover antibiotic drops from a previous prescription.
Does Pink Eye Need Antibiotics?
Usually not. This is where most people expect a prescription and most do not need one.
Viral conjunctivitis does not respond to antibiotics at all, because antibiotics target bacteria. Allergic conjunctivitis does not either. Even many bacterial cases resolve without treatment.
Antibiotics are sometimes prescribed for bacterial conjunctivitis, particularly when discharge is heavy, symptoms are severe, or the infection is not improving. The decision depends on the presentation and the person. Some clinicians treat mild bacterial cases supportively and reserve antibiotics for cases that are not resolving or that carry higher risk.
This is a case where common practice and evidence do not perfectly line up. Antibiotics are frequently prescribed for conjunctivitis, but many mild cases would likely resolve without them. If you are offered a prescription, it is reasonable to ask whether it is expected to change the course.
Never use drops prescribed for someone else, and never use expired drops.
How Long Does Pink Eye Last?
Viral conjunctivitis typically improves over several days to about two weeks. It often peaks in the first few days and then gradually settles. Bacterial cases that are treated with appropriate antibiotics often improve within a few days; untreated mild bacterial cases may take longer.
Allergic conjunctivitis lasts as long as the exposure lasts. It clears when the allergen is removed or the season passes.
If symptoms are getting worse rather than better after a few days, or if they have not started improving within about a week, that is a reason to check in with a clinician rather than wait longer.
When Is Pink Eye a Medical Emergency?
Most conjunctivitis is uncomfortable but not dangerous. A small number of signs point to something more serious, and those need prompt medical attention.
Seek care right away if you have:
- Eye pain that is moderate to severe, not just irritation
- Blurred vision or vision loss that does not clear when you blink
- Light sensitivity that is new or worsening
- Intense redness, especially around the colored part of the eye
- A feeling that something is stuck in the eye that will not wash out
- Symptoms after an eye injury, chemical exposure, or foreign object
- Discharge that is heavy and persistent despite home care
- A weakened immune system, recent eye surgery, or contact lens use with red eye
These signs can indicate inflammation of the cornea, a deeper eye infection, or another condition that needs treatment. They are not typical of simple conjunctivitis. Newborns with red or discharging eyes need urgent evaluation — this is a different situation entirely and should not be managed at home.
Can You Prevent Spreading Pink Eye?
Viral and bacterial conjunctivitis spread through contact — hands, towels, surfaces, and shared items. Interrupting that chain is the most effective thing you can do.
Wash your hands before and after touching your face or eyes. Keep your hands away from your eyes when possible. Do not share eye makeup, towels, or pillowcases. Clean surfaces that your hands and face touch often.
If you wear contact lenses, remove them at the first sign of redness or irritation and do not put them back in until the eye is completely normal and a clinician confirms it is safe. Contact lens–related eye infections can be serious and are not the same as routine conjunctivitis.
Stay home from work or school while symptoms are active if you have viral or bacterial conjunctivitis, particularly if you work with children or in close-contact settings. Allergic conjunctivitis is not contagious, so no isolation is needed.
What About Over-the-Counter Eye Drops?
Lubricating artificial tears are the main over-the-counter option that helps. They add moisture and can rinse away irritants. Preservative-free versions are gentler if you use them often.
Redness-relieving drops work by narrowing blood vessels in the eye. They can make the eye look whiter for a few hours, but they do not treat the underlying cause. Used regularly, they can lead to rebound redness — the eye becomes redder when the drops wear off, which leads to more use. This is a well-documented effect.
Antihistamine eye drops can help allergic conjunctivitis specifically. They are not useful for viral or bacterial infection. If itching is the main symptom and it happens in both eyes with allergy triggers, an antihistamine drop may be appropriate; a clinician or pharmacist can advise.
There is no over-the-counter drop that treats a viral or bacterial infection.
Does Anything Speed Up Recovery?
No home remedy has been shown to shorten a viral conjunctivitis infection. The immune system clears it on its own timeline. What home care does is reduce discomfort and lower the chance of spreading it.
Rest, hydration, and avoiding irritants like smoke or chlorinated water support general recovery. Cold compresses reduce swelling and itching. Warm compresses relieve crusting. Artificial tears ease grittiness. Those are comfort measures, not cures.
If symptoms are not improving, getting worse, or come with any of the warning signs above, the next step is a clinician, not another home remedy.
Frequently Asked Questions
How long does pink eye usually last?
Viral conjunctivitis typically improves over several days to about two weeks, while allergic conjunctivitis lasts as long as the allergen exposure continues. Bacterial cases often improve within a few days when antibiotics are appropriate.
Can I treat pink eye at home without antibiotics?
Yes — most viral and allergic cases do not respond to antibiotics at all and are managed with compresses, artificial tears, and hygiene. Bacterial conjunctivitis sometimes needs antibiotics, so check with a clinician if symptoms are severe or not improving.
Is pink eye contagious?
Viral and bacterial conjunctivitis are contagious and spread through contact with hands, towels, and shared items. Allergic conjunctivitis is not contagious, because it is a reaction to allergens rather than an infection.
When should I see a doctor for pink eye?
See a clinician promptly if you have eye pain, blurred vision, light sensitivity, heavy discharge, or symptoms after an injury or chemical exposure. Also seek care if symptoms are not improving after about a week or are getting worse.
