Pink eye usually clears up on its own within 7 to 14 days, but the right treatment depends on what’s causing it. Viral, bacterial, and allergic conjunctivitis each look slightly different and respond to different approaches. Figuring out which type you have is the fastest way to feel better.
Figuring Out Which Type You Have
The discharge from your eye is the biggest clue. Viral pink eye produces a watery, clear, thin discharge. It often starts in one eye and spreads to the other a day or two later. You may notice a gritty sensation, swollen eyelids, and sensitivity to light.
Bacterial pink eye looks different. The discharge is thick, yellow or greenish, and tends to crust your eyelids shut overnight. You might wake up unable to open one or both eyes without gently cleaning away that sticky buildup.
Allergic pink eye is the easiest to identify because the dominant symptom is intense itching, and it almost always hits both eyes at the same time. You’ll also notice excessive tearing and puffy eyelids, but the discharge stays watery rather than turning thick or colored. If your symptoms coincide with pollen season or exposure to pet dander, allergies are the likely culprit.
Treating Viral Pink Eye at Home
There’s no medication that kills the virus causing viral conjunctivitis. Like a common cold, it has to run its course. Most mild cases resolve in 7 to 14 days without treatment and without lasting effects, though stubborn cases can linger for two to three weeks.
What you can do is manage the discomfort. A clean, cool washcloth placed over your closed eyes for a few minutes several times a day helps with swelling and the gritty feeling. Preservative-free artificial tears (available over the counter) keep the eye lubricated and wash away some of the discharge. Avoid drops labeled “get the red out,” which can irritate an already inflamed eye. If light sensitivity bothers you, wearing sunglasses indoors isn’t overkill.
When You Need Antibiotic Drops
Bacterial pink eye is the one type that responds to prescription antibiotic eye drops. Your doctor will typically prescribe drops to use every two to four hours while awake for the first couple of days, then about four times a day for up to five more days. You should notice improvement within 24 to 48 hours of starting treatment.
Mild bacterial cases can technically resolve without antibiotics, but treatment shortens the infection, reduces the chance of spreading it, and helps you get back to work or school faster. Pink eye generally remains contagious as long as your eyes are tearing and producing that matted discharge. Using antibiotic drops speeds up the point at which you’re no longer infectious.
Treating Allergic Pink Eye
Allergic conjunctivitis won’t go away until you reduce your exposure to whatever’s triggering it, but antihistamine eye drops can dramatically cut the itching, redness, and tearing. Over-the-counter options like ketotifen (sold as Zaditor) used twice a day are safe and effective for most people. Olopatadine (Patanol), also available over the counter, performs slightly better at reducing itching in head-to-head comparisons.
These drops work by blocking histamine and stabilizing the cells that release it, tackling the allergic reaction on two fronts. Cold compresses help here too, and oral antihistamines can provide additional relief if your allergies extend beyond your eyes. The key difference from viral or bacterial pink eye: allergic conjunctivitis isn’t contagious at all.
Stopping the Spread While You Heal
Viral and bacterial pink eye are highly contagious, and reinfecting yourself is surprisingly easy if you’re not careful with your belongings. A few specific steps make a real difference.
- Hands: Wash them every time you touch your face or apply eye drops. This is the single most effective way to prevent spreading the infection to your other eye or to someone else.
- Contact lenses: Stop wearing them immediately. Throw away disposable lenses and their cases if you used them while infected. Clean extended-wear lenses and cases thoroughly before using them again, and wait until symptoms are completely gone before putting contacts back in.
- Eye makeup: Toss any eye or face makeup you used while infected. Mascara, eyeliner, and brushes can harbor bacteria and viruses. Using contaminated makeup is one of the most common ways people reinfect themselves.
- Linens: Wash pillowcases, towels, and washcloths in hot water and detergent. Don’t share them with anyone in your household. Change your pillowcase daily if possible, since you press your face into it for hours each night.
Symptoms That Need Prompt Medical Attention
Most pink eye is uncomfortable but harmless. However, certain symptoms signal something more serious, such as a deeper eye infection or a condition that isn’t actually conjunctivitis. Get evaluated quickly if you experience eye pain (not just irritation, but actual pain), blurred vision that doesn’t clear when you blink away discharge, significant light sensitivity, or intense redness that’s getting worse rather than better over a couple of days. These can indicate infections that affect the cornea or other structures in the eye and need targeted treatment to prevent lasting damage.