For symptom relief, apply cold compresses and use preservative-free artificial tears as needed. If symptoms persist, antihistamine eye drops (e.g., ketotifen 0.035%) can control itching and redness. Severe or refractory cases may require prescription corticosteroid eye drops, oral antihistamines, or allergen-specific immunotherapy under medical supervision.
January 14, 2025

Allergies with Itchy Eyes: Best OTC Solutions

Evidence-Based Over-The-Counter Guide

William Shen

William Shen

Co-founder & CPO

See all guides. Have more questions?

Itchy eyes (allergic conjunctivitis) is an immune-mediated inflammation of the conjunctiva caused by allergens such as pollen, dust, or pet dander. It presents with itching, redness, tearing, and swelling of the eyes. Treatment aims to alleviate symptoms and prevent recurrence.

First-line recommendations:

  • Avoidance of allergens: Minimize exposure to known triggers by keeping windows closed, using air purifiers, and wearing sunglasses outdoors.

  • Symptom relief: Apply cold compresses to the eyes several times daily to reduce itching and swelling. Artificial tears can flush out allergens and soothe irritation. Use preservative-free drops as needed. Refresh Tears PF Preservative-Free Artificial Tears (FDA M018).

Second-line recommendations:

  • Antihistamine eye drops: To control itching and redness. Use twice daily. Second-generation topical histamine H1-receptor antagonists with mast-cell stabilizing action (e.g. ketotifen 0.035%) are most effective. Zaditor Antihistamine Eye Drops (FDA N021996).

Prescription medications:

  • Corticosteroid eye drops: Short-term use (e.g., loteprednol) for severe cases under ophthalmologist supervision to avoid side effects like glaucoma.

  • Oral antihistamines: Used off-label to help control refractory symptoms. Examples include loratadine or cetirizine. Sometimes may induce or worsen dry eye syndrome, impair the tear film's protective barrier, and actually worsen allergic conjunctivitis, so use in consultation with a doctor.

  • Allergen-specific immunotherapy: Consult an allergist for immunotherapy (e.g., sublingual or subcutaneous) in severe, refractory cases.

Citation

Varu, D. M., Rhee, M. K., Akpek, E. K., Amescua, G., Farid, M., Garcia-Ferrer, F. J., ... & Dunn, S. P. (2019). Conjunctivitis preferred practice pattern®. Ophthalmology, 126(1), P94-P169.

What OTC evidence is reviewed?

  • For each condition, we performed a literature review to find a recent widely cited expert group guideline published in the leading specialty-specific peer-reviewed journal or top general medical journal.

  • Based on the recommendations in the publication, we identify recommended active ingredients and devices that are available over-the-counter per FDA regulations.

What evidence is prioritized?

Levels of evidence considered:

  • Tier 1 (Safe and Definitely Effective): Professional field consensus or multiple randomized controlled clinical trials showing the same conclusion. Wherever possible, we use Tier 1 evidence for "first-line" recommendations.

  • Tier 2 (Safe and Probably Effective): Individual clinical trials which may be discordant or large-scale observational experience. Tier 2 evidence may inform "first-line", "second-line", or "supplement" recommendations.

  • Tier 3 (Safe and Maybe Effective): Mechanistic plausibility without high-quality clinical evidence of efficacy but high-quality evidence of safety. Tier 3 evidence may inform "second-line" or "supplement" recommendations.

How does MDandMe select recommended products?

  • Based on the top clinical recommendation, we evaluate products containing the recommended active agent with FDA-approved dosage based on price, average customer reviews, how often it is purchased, and how quickly it will ship to home. 

  • We provide public documentation of the active ingredients in our recommendations, using all 32 FDA monographs, Prescription-to-Nonprescription (Rx-to-OTC) Switches, as well as New Drug Application (NDA) approvals.

How does MDandMe select recommended devices?

  • Based on the top clinical recommendation, we evaluate devices that are FDA-cleared or comply with other medical guidelines (if not a FDA-regulated category) by reputability, price, and average customer reviews.

  • We provide public documentation of supporting evidence for each device.