Urgent warning: If you have severe eye pain, sudden loss of vision, extreme light sensitivity, thick pus-like discharge from the eye, or any change in consciousness, seek emergency care or see an eye specialist (ophthalmologist) right away. For allergic conjunctivitis, low-risk self-care measures may help ease symptoms: apply a cold compress for relief; use preservative-free artificial tears to keep the eye surface moist; avoid rubbing or touching the eyes; reduce exposure to common triggers such as pollen, dust mites and pet dander by keeping living spaces clean and washing hands frequently. Air filtration and regular cleaning of bedding can sometimes help. If symptoms persist or get worse, see an eye specialist (ophthalmologist) or an allergy/immunology physician. If you are considering medicines or medicated eye drops, consult a doctor or pharmacist — specific drug names, doses or treatment plans are not provided here. Even without the urgent signs above, medical assessment is advised if symptoms last more than a few days.