Swelling of the lower eyelid of the baby may be caused by crying, mosquito bites, blepharitis, etc. Patients can improve their condition through general treatment, medication and surgery. 1. Crying: long-term crying children can appear eyelid edema performance, parents can appease the baby, calm emotions, stop crying, but also can be localized cold compresses on the eyelids to improve the performance of eyelid edema. 2. mosquito bites: the baby in the mosquito bites, may also cause swelling of the lower eyelid, can be used under the guidance of the doctor glycerine lotion, mometasone furoate cream and other medications for local treatment, can also be used to wrap a towel in ice cubes placed on the eyelid of the part of the cold compresses, help to relieve the swelling of the eyelids, itching and other discomforts. 3. Blepharitis: Blepharitis refers to suppurative inflammation of the glands of the eyelids, and children can have eyelid abscesses, pain and other symptoms, patients can follow the doctor’s instructions to use tobramycin eye drops and other medications, to control the inflammation and alleviate the discomfort of the symptoms. After the appearance of eyelid abscess, children can be incised and drained to promote the abscess to subside. It is recommended that children with significant swelling of the eyelid should be seen promptly for evaluation of their condition and treatment as prescribed by the doctor.