Conjunctivitis (Pink Eye)
Conjunctivitis, often called pink eye, can make one or both eyes red, gritty, watery, itchy, or sticky. Viruses, bacteria, allergies, and irritants can overlap, so pain, light sensitivity, vision change, or a red eye in a contact-lens wearer needs prompt eye assessment.
Editorial review complete
Independent clinical validation is pending.
Quick Reference Facts
Visual guide
In simple words
Conjunctivitis is inflammation of the thin membrane lining the white of the eye and inner eyelid. It can make one or both eyes look pink or red and feel gritty, watery, itchy, or sticky. Viruses, bacteria, allergies, and irritants can cause similar symptoms, so a red eye is not something to diagnose from discharge colour alone.
Often called pink eye, conjunctivitis is a common eye-surface condition. Viral and bacterial forms can spread between people; allergy- and irritant-related forms are not contagious.
Common causes
- Viruses, sometimes alongside a cold or respiratory illness
- Bacteria
- Allergens such as pollen, dust, or animal dander
- Irritants, a foreign body, chemicals, or contact-lens-related irritation
Risk Factors
- Close contact with someone with viral or bacterial conjunctivitis
- Seasonal allergies, eczema, or asthma
- Touching the eyes after contaminated hands or personal items
- Contact-lens wear, especially if a red eye is painful or vision is affected
Common symptoms
- Redness of the white of one or both eyes, eyelid swelling, tears, or a gritty/burning feeling
- Crusting of lashes or eyelids, especially on waking, and clear, mucus, or pus-like discharge
- Itching, often prominent when allergy is involved
- Temporary blur from tears or discharge that clears when blinking or gently cleaned away
Clinical Red Flags
Seek urgent medical attention at an emergency department or primary care clinic if you present with any of the following symptoms:
- Eye pain, marked light sensitivity, intense redness, or blurred vision that does not clear after discharge is gently cleaned away
- A red or painful eye in a contact-lens wearer, eye injury, chemical splash, or possible foreign body
- A newborn with red, watery, or sticky eyes—seek medical care right away
- Symptoms that are worsening, not improving, or occur with reduced immune defenses, fever, facial swelling, or feeling very unwell
Lifestyle & diet support
Wash hands often and avoid rubbing the eyes. Gently clean discharge using clean water and a fresh clean cloth or pad, then wash hands again. Do not share towels, pillows, eye makeup, eye drops, contact lenses, or lens cases. Pause contact lenses until symptoms have resolved and an eye-care professional advises it is safe; clean, store, and replace lenses and cases as directed.
Treatment Approaches
Conventional Management
Treatment depends on the cause. Viral conjunctivitis often improves with time; antibiotics do not treat viruses or allergies. A clinician may prescribe treatment for selected bacterial infections or allergy-related symptoms. Until an eye professional says it is safe, stop wearing contact lenses. Cool compresses and preservative-free artificial tears may help mild discomfort, but do not delay assessment for any red flag.
Homeopathic Approach
Reliable clinical evidence has not established homeopathy as a treatment for conjunctivitis. It must not replace an eye examination, prescribed treatment, infection-control measures, or urgent care for pain, light sensitivity, vision changes, or contact-lens-related red eye.
Clinical & academic detailShow detailHide detail
Diagnosis & tests
Investigation Protocol
A clinician, optometrist, or eye-care professional can usually assess a red eye from the symptoms, history, and eye examination. Tests are not routine, but a swab may be considered for severe, recurrent, newborn, or unusual infection. Because symptoms overlap, eye pain, light sensitivity, persistent blur, intense redness, injury, or contact-lens use deserves prompt assessment.
Differential Diagnosis
Dry eye, blepharitis, a corneal infection or ulcer, foreign body, uveitis, glaucoma, and other causes of a red eye can resemble conjunctivitis and may need urgent treatment.
- Eye swab or laboratory testing may be used for severe, recurrent, newborn, or atypical cases.
Imaging is not normally needed for uncomplicated conjunctivitis.
Differential Diagnosis Matrix
Dry eye, blepharitis, a corneal infection or ulcer, foreign body, uveitis, glaucoma, and other causes of a red eye can resemble conjunctivitis and may need urgent treatment.
Reference Citations & Evidence Sources
Clinical Reviews & Textbooks
- CIT-0101Centers for Disease Control and Prevention. "Symptoms of Pink Eye." Centers for Disease Control and Prevention (2026).
- CIT-0102NHS. "Conjunctivitis." NHS (2026).
No clinical connections registered for this topic.
Seeking Expert Consultation?
Book an online video session with Dr. Narayan Jethwani to get an individualized constitutional homeopathic protocol tailored to your case.
Medical Safety Disclaimer
All content on the Homeo Healthcare platform is strictly for educational purposes and is not personal medical advice, diagnosis, or treatment. Homeopathic remedy considerations are provided for clinician review or require individualized consultation with a qualified physician. Never delay seeking professional medical advice or emergency medical care due to content you have read on this website.