Pink Eye (Conjunctivitis): Causes and Online Treatment

Three common causes

Viral conjunctivitis is the most common, very contagious, and usually clears on its own. Bacterial conjunctivitis often produces thicker, yellow-green discharge and may respond to antibiotic drops. Allergic conjunctivitis is itchy, watery, and affects both eyes, often alongside other allergy symptoms.

How virtual care helps

A nurse practitioner can review a clear, well-lit photo and your symptoms to identify the likely cause, recommend hygiene measures to prevent spread, and prescribe drops where appropriate. Good handwashing and not sharing towels are key to stopping the spread.

When to be seen in person

What pink eye is and how it spreads

HealthLink BC defines pinkeye as inflammation of the conjunctiva — the thin layer lining the white of the eye and inside of the eyelid. It is most often caused by a virus or bacteria and spreads easily from person to person, though it can also result from allergies or irritants. Viral and bacterial forms are contagious; allergic conjunctivitis is not.

Treatment and the natural course

Many people are surprised that pink eye often needs no antibiotics. HealthLink BC notes that viral pinkeye usually improves on its own in 7 to 10 days, and that bacterial infections typically last 7 to 10 days without antibiotic treatment and 2 to 4 days with it. A nurse practitioner can review a clear, well-lit photo and your symptoms to judge the likely cause, recommend hygiene measures, and prescribe drops when the pattern points to a bacterial infection. This is consistent with Choosing Wisely Canada's guidance to reserve antibiotics for cases that truly warrant them.

Preventing spread and recognizing red flags

Strict hygiene limits spread: wash hands often, avoid touching the eyes, and do not share towels or pillowcases, for up to 10 days after diagnosis or while the eye remains red. Certain symptoms need urgent in-person eye care rather than a virtual visit — eye pain, changes in vision, sensitivity to light, a possible foreign object, or symptoms following an eye injury. These can signal a more serious problem that requires hands-on examination.

Telling the three types apart

Distinguishing the cause guides everything. Viral pink eye, the most common form, often accompanies a cold and produces watery discharge, frequently starting in one eye and spreading to the other. Bacterial pink eye tends to produce thicker, yellow-green discharge that can glue the lids together, especially overnight. Allergic conjunctivitis is intensely itchy, watery, affects both eyes at once, and usually comes with other allergy symptoms like sneezing. HealthLink BC describes these patterns, which a nurse practitioner uses alongside your photo and history to reach a likely diagnosis.

Comfort measures and stopping the spread

Whatever the cause, comfort measures help. Cool or warm compresses soothe irritation, and gently wiping away discharge keeps the eye clean. For allergic pink eye, antihistamine or specific eye drops can relieve itching. Avoid wearing contact lenses until the eye is fully better, and replace any that were worn while infected.

Because viral and bacterial conjunctivitis spread so easily, hygiene is key: wash hands frequently, avoid touching or rubbing the eyes, do not share towels, pillowcases, or eye makeup, and change pillowcases often — for up to ten days after diagnosis or while the eye stays red. These steps protect your household and, in the case of children, help prevent outbreaks at school or daycare.

Frequently asked questions about pink eye

Is pink eye always contagious? Viral and bacterial forms are contagious; allergic conjunctivitis is not. Strict handwashing, not touching the eyes, and not sharing towels or pillowcases limit spread for up to ten days after diagnosis or while the eye stays red. Do I always need antibiotic drops? No — HealthLink BC notes that viral pink eye usually clears on its own in 7 to 10 days, and even many bacterial cases resolve without antibiotics, so treatment is matched to the cause. Can a virtual visit really diagnose it? Often yes: a clear, well-lit photo plus your symptom history lets a nurse practitioner judge the likely cause and recommend hygiene measures or prescribe drops when appropriate.

How do I tell which type I have? Watery discharge that starts in one eye and spreads suggests viral; thick yellow-green discharge that glues the lids suggests bacterial; intense itch in both eyes with other allergy symptoms suggests allergic. A clinician confirms the pattern. When must I be seen in person? Eye pain, changes in vision, sensitivity to light, a possible foreign object, or symptoms after an eye injury all need urgent, hands-on eye care rather than a virtual visit, because these can signal a more serious problem. Can my child go to school or daycare? Follow local guidance, but good hygiene and, where prescribed, treatment reduce spread; ask the nurse practitioner for specifics. What soothes the discomfort? Cool or warm compresses help, gentle cleaning removes discharge, and contact lenses should be avoided until the eye is fully better. Taken together, these answers show why pink eye is so well suited to virtual assessment — and where its firm limits lie.

The bottom line on pink eye

Pink eye is common, usually mild, and a strong fit for virtual assessment — yet it is also a condition where the cause genuinely changes the treatment, which is where professional judgement matters. A clear photo and your symptom history let a nurse practitioner distinguish viral, bacterial, and allergic conjunctivitis, recommend the right hygiene and comfort measures, and prescribe drops only when the pattern calls for them. As HealthLink BC notes, many cases — including viral and even some bacterial ones — resolve without antibiotics, so restraint is often the evidence-based choice.

The two things worth remembering are spread and red flags. Because viral and bacterial pink eye are contagious, diligent handwashing, not touching the eyes, and not sharing towels or pillowcases protect your household for up to ten days. And certain symptoms — eye pain, vision changes, light sensitivity, a possible foreign object, or injury — are not for a virtual visit at all; they need urgent, hands-on eye care. Within those clear limits, virtual care offers a fast, convenient way to get an irritating, worrying problem assessed and a sensible plan in place, often without the wait of an in-person appointment.

Frequently asked questions

References (Canadian sources)

The following Canadian public-health and clinical sources informed this article. They are provided for education and do not replace personalized medical advice.

1. Pinkeye (conjunctivitis) — HealthLink BC
2. Using Antibiotics Wisely in Primary Care — Choosing Wisely Canada