Treatment for red eyes from conjunctivitis depends on the cause. For viral conjunctivitis, use over-the-counter lubricating preservative-free artificial tears and cool compresses for comfort. For allergic conjunctivitis, OTC antihistamine drops like ketotifen will help. If you have bacterial conjunctivitis (indicated by thick, yellowish discharge), you will require prescription antibiotic eye drops. Avoid wearing contact lenses and do not touch your eyes to prevent spreading the infection. Please consult a doctor for a proper examination to determine the exact cause and get the correct prescription.