A hordeolum is the medical term for a stye, a small, painful bump that forms on or inside the eyelid when one of the oil-producing glands becomes infected with bacteria. It’s one of the most common eyelid conditions, affecting people of all ages, and in the vast majority of cases it resolves on its own within one to two weeks.
What Causes a Hordeolum
Your eyelids contain dozens of tiny glands that produce the oily layer of your tear film. When bacteria get into one of these glands, they trigger an acute infection that leads to a localized, pus-filled bump. Around 90% to 95% of hordeola are caused by Staphylococcus aureus, a bacterium that commonly lives on human skin without causing problems. Less often, other staph species or streptococcal bacteria are responsible.
Anything that introduces bacteria to the eyelid or blocks those oil glands raises the risk. Rubbing your eyes with unwashed hands, sleeping in contact lenses, using old or shared eye makeup, and having chronic eyelid inflammation (blepharitis) all make styes more likely. Some people are simply prone to recurrent hordeola, often because they carry higher levels of staph bacteria on their skin or have chronically clogged eyelid glands.
External vs. Internal Hordeolum
There are two types, and the distinction comes down to which gland is infected. An external hordeolum forms at the base of an eyelash, in one of the small sweat or oil glands along the lid margin. It looks like a pimple right at the lash line and is the more common variety. An internal hordeolum develops deeper in the eyelid, within the larger oil glands embedded in the eyelid’s cartilage. Internal hordeola tend to be more painful because the swelling is pressed against the firm tissue of the lid, and they sometimes point inward, causing irritation against the surface of the eye itself.
What It Looks and Feels Like
The first sign is usually tenderness and mild swelling in one spot on the eyelid. Over a day or two, that area becomes a distinct red, swollen bump that’s warm and painful to touch. A small yellowish or white spot may appear at the center as pus collects. The surrounding eyelid often swells noticeably, and the eye on that side may water more than usual.
Most hordeola affect only a small area. Your vision stays normal, and the eye itself isn’t red or painful. If swelling spreads across the entire eyelid, the skin becomes hot and deeply red, or you develop fever and pain with eye movement, that suggests the infection has spread beyond the gland, a complication called preseptal cellulitis that needs prompt medical attention.
Hordeolum vs. Chalazion
People often confuse styes with chalazia because both appear as lumps on the eyelid, but they’re different conditions. A hordeolum is an active bacterial infection: it comes on quickly, hurts, and looks red and inflamed. A chalazion is a blocked oil gland without infection. It develops slowly over weeks, feels firm rather than tender, and is usually painless. A chalazion can actually start as a hordeolum. Once the infection clears, if the gland stays clogged, the leftover plug of oil and inflammatory tissue forms a firm, painless nodule. Chalazia that persist for months sometimes need a minor in-office procedure to drain, while most hordeola clear up on their own.
Home Treatment
Warm compresses are the main treatment. Soak a clean washcloth in warm water (comfortably hot, not scalding), wring it out, and hold it against the closed eyelid for 10 to 15 minutes. Repeat this three to four times a day. The warmth increases blood flow to the area, loosens the clogged oil, and encourages the stye to drain naturally. You can gently massage the eyelid after each compress session to help move things along.
Avoid squeezing or popping a hordeolum the way you might a pimple. Forcing it open can push bacteria deeper into the tissue and worsen the infection. Let it open and drain on its own. While the stye is active, skip contact lenses and eye makeup to avoid reintroducing bacteria or irritating the area further. Most hordeola drain and heal within 7 to 14 days with nothing more than consistent warm compresses.
When Medical Treatment Is Needed
If a stye hasn’t improved after about two weeks of home care, or if it keeps getting larger, a doctor may prescribe antibiotic eye drops or ointment to help clear the infection. Oral antibiotics are reserved for cases where the infection appears to be spreading beyond the eyelid. For a hordeolum that forms a persistent abscess and won’t drain on its own, a doctor can perform a quick incision and drainage in the office under local anesthesia. The procedure takes just a few minutes and provides almost immediate relief from the pressure and pain.
Preventing Recurrence
If you get styes more than once or twice, daily eyelid hygiene can break the cycle. The goal is to keep the oil glands along your lid margins clean and flowing freely. A simple routine involves washing the eyelid margins once a day with a mild cleanser. Diluted baby shampoo on a cotton swab works well, as do pre-moistened eyelid cleaning wipes available at most pharmacies. Some wipes contain hypochlorous acid, a gentle antimicrobial that reduces bacterial load without irritating the eyes. For people with chronic lid inflammation, low-concentration tea tree oil products can help control bacteria and mites that contribute to gland blockages.
Beyond cleaning, a few habits help: wash your hands before touching your eyes or handling contacts, replace eye makeup every three to six months, remove all makeup before bed, and clean contact lens cases regularly. If you’re prone to styes, a brief warm compress routine a few times a week, even when you don’t have symptoms, keeps those oil glands from clogging in the first place.