Allergens that doctors most commonly use in immunotherapy treatments for allergic rhinitis, allergic conjunctivitis, and allergic asthma include extracts of inhalant allergens from tree, grass, and weed pollens; mold spores; and dust mites.
Conjunctivitis due to a viral infection, particularly those due to adenoviruses, are usually treated by applying warm compresses to the affected area and using topical antibiotic ointments to prevent secondary bacterial infections.
Allergic conjunctivitis can be treated by removing the allergic substance from a person's environment, if possible; by applying cool compresses to the eye; and by administering eye drops four to six times daily for four days.
In such cases, a small sore develops on the palpebral conjunctiva (the membrane lining the inner eyelid) and is often accompanied by conjunctivitis (inflammation of the membrane) and swollen lymph nodes in front of the ear.
If there is no relief of symptoms in 48 to 72 hours, or there is moderate to severe eye pain, changes in vision, or the conjunctivitis is suspected to be caused by herpes simplex, a physician should be notified immediately.