Erythromycin eye ointment is not recommended for mosquito bites in the eyes; it is not very useful for mosquito bites. Mosquito bites can cause localized skin symptoms such as redness, swelling and itching. As the appearance of redness and swelling has little to do with infection. Erythromycin eye ointment is used for the treatment of trachoma, conjunctivitis, blepharitis and infections outside the eye, so it is not recommended to use erythromycin eye ointment after being bitten by mosquitoes. If itching occurs, you can use some saline cold compresses for relief. Adverse reactions such as eye pain and persistent redness may occur after using erythromycin ophthalmic ointment, which can be gradually relieved after stopping the medicine in general. If there is burning sensation, itching, redness and swelling at the site of medication, the medication should be washed off and prompt medical attention should be sought. Avoid contact with the mucous membranes of the mouth and nose when using the drug, and children, pregnant women and lactating women should follow the doctor’s instructions for use. The use of this drug is prohibited for those who are allergic to this drug or the components of the formula. When there is obvious discomfort after mosquito bites, consult a doctor in time, erythromycin is usually not used.