Conjunctivitis is characterized by conjunctival congestion, exudation, papillary hypertrophy, and follicle formation due to infection, allergies, or trauma. It is a common eye disease in ophthalmology, and generally does not severely affect vision. Patients with conjunctivitis should avoid spicy foods such as onions, leeks, garlic, chili peppers, lamb, dog meat, etc. It is also best for patients with conjunctivitis to consume less shrimp, crab, and other seafood that may exacerbate the condition. Additionally, patients should avoid smoking and drinking alcohol.