Most styes are preventable with a few consistent habits. A stye forms when oil glands along your eyelid get clogged and infected, almost always by staph bacteria that already live on your skin. Keeping those glands clear and reducing the bacteria around your eyes is the core of prevention.
Why Styes Form
Your eyelids contain dozens of tiny oil glands that help lubricate your eyes with every blink. When one of these glands gets blocked by dead skin cells, dried oil, or debris, bacteria (most commonly Staphylococcus aureus) multiply inside the clogged gland and trigger an infection. The result is a red, painful bump on or inside the eyelid.
External styes appear at the base of an eyelash, where smaller oil and sweat glands sit. Internal styes develop deeper in the eyelid, in larger oil glands that produce the oily layer of your tear film. Both types start the same way: a blocked gland plus bacteria.
Keep Your Eyelids Clean
Daily eyelid hygiene is the single most effective way to prevent styes. Wash your eyelids gently with mild soap and water, paying attention to the lash line where oil and debris collect. If you’re prone to styes, doing this two to three times a day makes a noticeable difference. You can use a clean washcloth or your fingertips, working in small, gentle strokes along the lid margin.
A warm compress before washing can soften any thickened oil sitting in the glands. Hold a clean, warm (not hot) washcloth against your closed eyelids for five to ten minutes. The heat loosens the oils so they flow more freely when you blink, reducing the chance of a blockage forming in the first place. This is especially helpful if your eyelids tend to feel crusty or heavy in the morning.
Replace Eye Makeup on Schedule
Old makeup is a breeding ground for bacteria, and anything you apply near your lash line carries that bacteria directly to the glands most vulnerable to infection. Sticking to replacement timelines matters more than most people realize.
- Mascara: Replace every six months. The dark, moist tube is an ideal environment for bacterial growth.
- Liquid eyeliner: Also six months. Pencil liners last longer, roughly one to two years, because sharpening removes the contaminated outer layer.
- Eye shadow: Liquid or cream formulas last six months to one year. Powder shadows can go one to two years.
Never share eye makeup with anyone else, and avoid applying makeup to the inner rim of your eyelid (the waterline), where it can directly block oil glands. If you do develop a stye, throw out any eye products you were using at the time and start fresh once it heals.
Handle Contact Lenses Carefully
Contact lenses don’t cause styes on their own, but sloppy lens habits introduce bacteria to the eye area repeatedly. The CDC recommends a specific routine that significantly reduces the risk of eyelid and eye infections.
Wash your hands thoroughly with soap and water before touching your lenses, and dry them completely with a clean cloth. When you remove your lenses, rub and rinse them with fresh disinfecting solution rather than just dropping them in the case. Never top off old solution with new solution; dump the old solution out completely each time. After storing your lenses, rinse the empty case with solution (not water), then leave it open and upside down to air dry. Replace the case itself at least every three months.
Remove your contacts before swimming or showering. Water introduces bacteria and other microorganisms that cling to the lens surface and sit against your eyelid for hours. Sleeping in lenses also increases infection risk unless your eye care provider has specifically told you it’s safe with your particular lens type.
Break the Touching Habit
Rubbing your eyes feels satisfying, but your hands carry staph bacteria constantly. Every time you rub, scratch, or press on your eyelids, you’re transferring bacteria directly to the gland openings along your lash line. If your eyes feel itchy or tired, use preservative-free artificial tears instead of your fingers. When you do need to touch your eyes (removing contacts, applying medication), always wash your hands first.
What About Omega-3 Supplements?
You’ll sometimes see omega-3 fatty acids recommended for improving oil gland function in the eyelids. The logic makes sense: healthier oil flow means fewer blockages. But the evidence is weak. A large clinical trial published by the American Academy of Ophthalmology tested a substantial daily dose of omega-3s (over 2,000 mg combined) against a placebo and found no significant difference in oil gland-related eye symptoms at either six or twelve weeks. Omega-3s aren’t harmful, but they’re unlikely to be the thing that prevents your next stye.
If You Keep Getting Styes
Some people get styes once and never again. Others deal with them repeatedly, sometimes several times a year. Recurrent styes usually signal a chronic issue with the oil glands in the eyelids, a condition called meibomian gland dysfunction. The glands produce oil that’s too thick, which clogs them more easily.
If styes keep coming back despite good hygiene, an eye care provider can evaluate whether your glands are chronically inflamed or blocked. Treatment for recurrent cases goes beyond home care and may include prescription options to reduce bacteria on the eyelid surface or procedures to physically clear the blocked glands. The warm compress and eyelid washing routine described above remains the foundation, but persistent cases benefit from professional evaluation to break the cycle.