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What causes itchy eyes after having conjunctivitis?

Feb 01, 2024 Source: Cainiu Health
Dr. Wang Shuai
Introduction
In general, itchy eyes after conjunctivitis may be related to the recovery phase, residual pathogens or secretions, medication side effects, allergic conjunctivitis, dry eye syndrome, or other causes, and targeted treatments can be applied accordingly. If any of these conditions occur, prompt medical attention is recommended. In daily life, maintaining good eye hygiene and avoiding prolonged smartphone use can help promote eye health.

Generally, itchy eyes after conjunctivitis (pink eye) may be related to the healing phase, residual pathogens or secretions, medication side effects, allergic conjunctivitis, dry eye syndrome, and other factors. Targeted management should be applied accordingly. If any of the above conditions occur, prompt medical attention is recommended. Specific details are as follows:

1. Healing Phase

After treatment for pink eye, ocular tissues may still be in the recovery stage. Itching during this period is a normal physiological response and usually not a cause for concern. However, avoid rubbing your eyes to prevent reinfection.

2. Residual Pathogens or Secretions

Pink eye can be caused by bacteria, viruses, or other pathogens. Even after symptoms improve, residual pathogens or eye discharge may continue to irritate ocular tissues, causing itchiness. This is typically a sign of ongoing recovery and generally does not require specific intervention.

3. Medication Side Effects

Medications used during treatment, such as antibiotic eye drops, may cause allergic reactions or side effects leading to itchy eyes. Consult a doctor to determine whether medication adjustment or discontinuation is necessary.

4. Allergic Conjunctivitis

Allergic conjunctivitis is a common type of ocular allergic reaction, often triggered by allergens such as pollen, dust mites, or animal dander. Even after improvement of pink eye symptoms, allergic conjunctivitis may still cause eye itching, foreign body sensation, and increased discharge. Follow medical advice to relieve symptoms with medications such as ganciclovir eye drops, ofloxacin eye drops, or erythromycin tablets.

5. Dry Eye Syndrome

Medications, eye drops, or treatments used during pink eye management may lead to ocular surface dryness, resulting in dry eye syndrome. Symptoms may include itching, burning, and discomfort. Treatments such as sodium hyaluronate eye drops, Jinzhen eye drops, or tobramycin-dexamethasone eye drops may be used under medical guidance.

In daily life, maintaining good eye hygiene and avoiding prolonged smartphone use can help support eye health.

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