When the eye is bitten by a mosquito and there is localized redness and swelling, the swelling can be reduced by applying ice compresses as well as applying hormonal eye ointment treatments, such as tobramycin dexamethasone ophthalmic ointment. After the eyes are bitten by mosquitoes, because the mosquito body toxin effect on the local skin, there will be redness, swelling, itching and other symptoms. Treatment, it should be noted that you can not scratch the local skin, otherwise it will further aggravate the symptoms of redness and swelling, can be done by doing local ice to promote edema subside, but also both the role of itching. Applying hormone eye ointment on the red and swollen parts is an effective way to eliminate edema, such as tobramycin dexamethasone eye ointment, which is commonly used. It should be noted that the hormone eye ointment may cause hormonal glaucoma and other adverse reactions, need to be used reasonably under the guidance of a doctor.