Why Eyes Get Irritated So Easily While You're Travelling Here
If your eyes have gone red, gritty or watery a few days into a Vietnam trip, you're in very ordinary company. Central Vietnam throws several eye irritants at travelers at once, often on the same day.
Hotel pools are chlorinated, and a long swim followed by rubbing salt-and-sunscreen-slicked hands near your eyes is a reliable way to end up with stinging, pink eyes by evening. Seawater at My Khe beach in Da Nang or An Bang in Hoi An carries salt, sand and whatever's suspended in the water that day — a swim followed by wind and sun on the walk back to your hotel dries the surface of the eye further. Air conditioning, meanwhile, runs constantly in hotel rooms and dries the tear film overnight, and Da Nang's dust and humidity do the rest during the day. Add sunscreen or bug spray drips, and contact lenses worn longer than usual because you're on holiday, and it's easy to end up with irritated eyes without anything actually being infected.
The catch is that plain irritation, allergy and a genuine infection can look almost identical for the first day — red, watery, uncomfortable. Timing and a proper look at the eye are what separate them.
Viral, Bacterial or Allergic — The Three Usual Suspects
"Conjunctivitis" just means inflammation of the thin membrane covering the white of the eye and inner eyelid. It has three common causes, and the pattern of symptoms gives useful (though not perfect) clues:
- Viral conjunctivitis — usually starts in one eye and spreads to the other within a day or two, watery discharge rather than thick pus, often alongside a cold or sore throat. Highly contagious. Usually resolves on its own over one to two weeks.
- Bacterial conjunctivitis — thicker yellow or green discharge, eyelids that are stuck together or crusted shut on waking, more often just one eye. Also contagious, and usually improves faster with antibiotic drops.
- Allergic or irritant conjunctivitis — itching is the dominant feature, usually both eyes at once, tearing without real discharge, linked to an obvious trigger (chlorine, pollen, dust, sunscreen). Not contagious at all.
In practice these overlap enough that guessing from a mirror or a search engine isn't reliable — a genuinely irritant case can look red and unpleasant, while a mild bacterial one can look almost trivial. A doctor examining the eye, asking how it started, and checking for the specific signs of each is the honest way to know what you're dealing with, rather than self-treating from a pharmacy shelf and hoping.
What a Doctor Can Do at Your Hotel
For straightforward red-eye complaints, a home visit covers what's actually needed: a doctor examines the eye and eyelid with a penlight, checks that your pupils and vision look normal, gently looks under the eyelid for a trapped grain of sand or an eyelash, and asks about the pattern of onset that points toward viral, bacterial or irritant causes.
- If the picture looks bacterial, appropriate antibiotic eye drops (commonly chloramphenicol) are prescribed at a standard dose and duration.
- If it looks viral or irritant, the advice is usually cool compresses, artificial tears, and time — antibiotics don't help a virus and can occasionally do more harm than good.
- We'll tell you plainly what not to do: don't use leftover steroid eye drops from a previous trip or a pharmacy without a diagnosis first — steroids can make certain viral infections significantly worse. Don't share towels, pillowcases or eye makeup while symptoms are active. Wash your hands after touching your eye.
We cover hotels, villas and homestays across all of Da Nang — My Khe and the beach strip, An Thuong, Son Tra, Hai Chau and the Ngu Hanh Son area near the Marble Mountains — and throughout Hoi An, including the Old Town, An Bang beach and Cam Chau. We also reach Ho Chi Minh City, Phong Nha and Dong Hoi. In Da Nang most visits happen within 1 to 3 hours of booking; in Hoi An, add 45 to 60 minutes on top of a confirmed booking, since the team travels from Da Nang; in Ho Chi Minh City allow a few hours, as traffic decides more than distance; in Phong Nha our local team typically arrives within about 1 hour 30 minutes; in Dong Hoi our local team typically arrives within about 30 minutes, and as fast as 10 minutes for urgent cases.
What we don't do at the hotel: a slit-lamp exam or fluorescein dye staining, the tools an eye clinic uses to look closely at the cornea itself. For straightforward conjunctivitis that equipment usually isn't needed — but when the exam suggests something more, that's exactly when we refer you on rather than treat blind.
When It's More Than Conjunctivitis — Signs You Need an Eye Specialist
Ordinary conjunctivitis is uncomfortable but not dangerous to your eyesight. A handful of signs point to something that needs an ophthalmologist and equipment we don't carry to a hotel room, and we'll say so directly rather than treat it as routine pink eye:
- A corneal scratch or ulcer — from sand at the beach, a fingernail, or a contact lens that's been worn too long. This typically causes sharp pain, tearing and a strong feeling that something is still in the eye even after rinsing.
- Sudden or genuine vision change — blurring that doesn't clear with blinking, not just mild haziness from tearing.
- Severe light sensitivity (photophobia) that's out of proportion to ordinary conjunctivitis.
- One eye that's severely painful, as opposed to gritty or irritated — pain is the detail that moves this out of "wait and see."
Any of these gets a referral to an ophthalmologist or a hospital eye department, generically — we don't name a specific facility here, but Da Nang and Ho Chi Minh City both have eye specialists your doctor can point you toward, and we'll help arrange it.
If You Wear Contact Lenses
Contact lens wearers get a disproportionate share of Vietnam eye problems, mostly from ordinary travel habits: swimming or showering in lenses, topping up saline with tap water in a pinch, or simply wearing lenses longer than usual because it's easier on a beach day.
- The moment an eye becomes red, itchy or uncomfortable, take the lenses out and switch to glasses — bring a spare pair for exactly this situation.
- Don't put lenses back in until you've been examined. Wearing a lens over an irritated or infected eye is how a minor problem becomes a corneal ulcer, which is a genuinely serious complication that can threaten vision.
- Never rinse lenses or a lens case with tap water or let them near pool or sea water.
- Once cleared, discard the pair of lenses you were wearing when symptoms started and replace or thoroughly clean the case before resuming.
Kids and Pink Eye
Conjunctivitis spreads quickly among children — shared toys, pool time, and hands that go straight from eyes to everything else make it one of the most contagious minor illnesses of childhood. If you're travelling with kids, expect it to jump from one child to another within a household or a group of playmates within a day or two.
Keep towels, pillowcases and washcloths separate while symptoms are active, and reinforce handwashing. Many schools and daycares ask that a child stay away from group activities until the eye has stopped watering and discharging, and that's a reasonable rule of thumb while travelling too.
See a doctor for a child if the eye is significantly swollen (not just the eyelid looking puffy from crying), if there's a fever alongside the red eye, if the child is refusing to open the eye, or if a very young baby develops a red or discharging eye — that last one warrants same-day assessment rather than waiting. For fever alongside eye symptoms, our separate guide on managing a child's fever in Vietnam covers what to watch for.
Red Flags — When It's an Eye Emergency
- Sudden loss or significant blurring of vision that doesn't improve with blinking
- Chemical splash in the eye — rinse immediately with clean water or saline for at least 15 minutes, then seek care straight away, don't wait for a doctor to arrive before rinsing
- Any penetrating or blunt injury to the eye — a hook, a branch, a hard impact
- Severe, unrelenting eye pain, especially in one eye only
- Marked swelling around the eye with fever, which can signal a deeper infection of the tissue around the eye rather than simple conjunctivitis
Any one of these needs urgent attention rather than a routine hotel visit. If in doubt, a doctor coming to your hotel can at least assess quickly and tell you honestly whether you need an emergency eye department or whether it's manageable from where you are.
Paperwork for Your Travel Insurance
A doctor visit for conjunctivitis or eye irritation, including any referral to a specialist, is exactly the kind of acute-care claim most travel insurance policies accept. We provide an English medical report with the diagnosis and treatment given, plus an itemized receipt for the visit and any medication — keep these together with any pharmacy receipts. Payment for the visit itself is by QR code, cash, or credit/debit card, paid directly to the doctor; we don't bill insurers directly, but the paperwork is built for a straightforward reimbursement claim.
For more traveler health topics, browse our full library of health guides for Da Nang and Hoi An.