Does allergy testing treat allergic conjunctivitis?

Allergic conjunctivitis causes itchy, red, watery, or swollen eyes after contact with an allergen such as pollen, dust mites, mould, or animal proteins. Skin-prick or blood testing may support a diagnosis by showing sensitivity to particular substances, but a positive result needs to fit your symptoms and exposure history.

Testing does not wash allergens from the eye or immediately settle inflammation. Eye symptoms can also have other causes, including infection, irritation, or a problem affecting the surface of the eye, so testing is not suitable as the only assessment.

Avoid rubbing your eyes, wash your hands, and use a cool clean compress for comfort. Limit contact with a suspected trigger where practical. A clinician may recommend lubricating drops, anti-allergy eye drops, or another treatment based on your examination and medical history.

If testing is suggested, ask whether you should pause any antihistamines beforehand and how the result will change your plan. Do not use someone else’s eye drops, particularly drops containing medicine that were prescribed for another eye problem.

Seek prompt eye care for significant pain, light sensitivity, blurred or reduced vision, marked one-sided redness, injury, or discharge that makes the eyelids stick together. Emergency help is needed for facial swelling with breathing difficulty or other signs of a severe allergic reaction.

Ask whether your pattern fits allergic conjunctivitis, which triggers are worth testing, and which drops are appropriate. Tell the clinician if you wear contact lenses or have vision changes.