After the eye develops a wheals, you can apply topical erythromycin eye ointment. The eye ointment should be applied to the conjunctival sac, that is, to the inside of the eye. The correct method of application should be to turn the lower eyelid over and squeeze in a strip of erythromycin eye ointment, cover the ointment with the upper eyelid, and close the eye for 3-5 minutes so that the ointment can be fully distributed within the conjunctival sac and play a very good anti-inflammatory role. Because of the viscosity of the eye ointment, it is generally recommended that it can also be used before bedtime, where it will not cause very significant discomfort at night. In addition to using erythromycin eye ointment, antibiotic eye drops, such as levofloxacin hydrochloride eye drops 4-6 times during the day, will allow the eye to maintain an effective concentration of the drug for 24 hours, and the recovery from the disease may be more rapid. In addition. Local hot compresses can also be given to promote blood circulation.