What is allergic conjunctivitis?
Allergic conjunctivitis is your immune system reacting to airborne allergens — pollen, dust, dander, mold. Both eyes are usually itchy, watery, and red.
Different from pink eye (which is infectious). Allergic doesn't spread person-to-person.
Do I have allergic conjunctivitis? Common signs
If most of these describe what you're experiencing, telehealth may be a good next step:
What causes it
IgE-mediated allergic response. Pollen (seasonal), pet dander, dust mites, mold. Often co-exists with allergic rhinitis (hay fever).
Is it contagious?
No.
If your eyes are itchy enough that you can't help rubbing them, it's almost certainly allergic — not infectious.
Can it be treated online?
Allergic conjunctivitis is well-suited to telehealth. Severe vision changes, eye pain, or non-allergic symptoms warrant in-person evaluation.
How allergic conjunctivitis is treated
Antihistamine eye drops: olopatadine (Pataday), ketotifen. Mast cell stabilizers for chronic cases. Oral antihistamines (cetirizine, fexofenadine) if systemic allergies. Avoid rubbing — releases more histamine. Cool compresses. Avoid triggers when possible.
Self-care while you wait
- Cool compresses for itch
- Don't rub
- Wash hands and face after outdoor exposure
- Shower at night to remove allergens
- Run an air purifier
- Keep windows closed in high pollen seasons
- Wash pillowcases weekly
- Identify triggers (food/seasonal/pet)
How long does it last?
Improves within days of treatment. Chronic if exposure continues.
Frequently asked questions
Is it the same as pink eye?
No — allergic is your immune system, pink eye (conjunctivitis) is usually viral or bacterial. Different treatment.
Can I use it during pregnancy?
Olopatadine and ketotifen are usually safe; check with your provider.
Will my child outgrow it?
Some do. Many continue to have seasonal allergies into adulthood.
Should I see an allergist?
If severe, year-round, or affecting quality of life — yes. Allergy testing identifies specific triggers.
Can contacts make it worse?
Yes — allergens collect on lenses. Switch to glasses during flares.
