Allergic conjunctivitis should be considered first. The treatment of allergic conjunctivitis mainly includes the following: 1. Local application of anti-allergic eye drops such as azelastine hydrochloride drops, olopatadine drops or sodium cromoglycate drops, and non-steroidal eye drops such as pralophine drops if the eye is heavily congested. If there is edema of the conjunctiva or eyelids, you can apply eye drops containing corticosteroids such as tobramycin dexamethasone drops, but be aware of the side effects.2. Apply systemic anti-allergy medications such as loratadine tablets.3. Maintain a good diet and avoid spicy, stimulating, seafood and other allergy-prone diets.