Children’s eyelids suddenly red and swollen, may be mosquito bites, blepharitis, eye trauma, etc., under the guidance of a professional doctor for physical therapy, drug therapy, surgical treatment, etc. to relieve the discomfort, and promote the recovery of the condition. 1. Mosquito bites: If a child is bitten by a mosquito, the eyelids may be red and swollen, and may also be accompanied by itching and other discomforts, the patient can apply a localized cold compress on the eyelids to alleviate the discomfort of the eyes. Patients can also use tobramycin dexamethasone and other drugs under the guidance of a professional doctor to control inflammation and promote recovery. 2. Blepharitis: If a child develops blepharitis, the eyelids may suddenly become red and swollen, and the child may be treated with medication under the guidance of a doctor, such as tobramycin eye drops, etc. If a child develops blepharitis, the eyelids may suddenly become red and swollen. If a child with blepharitis develops an abscess on the eyelid, surgical incision and drainage can be performed under the guidance of a doctor to promote the abscess to subside. 3. Ocular trauma: If a child suffers from ocular trauma, such as eyelid bumping and squeezing, eyelid swelling may occur. Early on, local cold compresses can be applied to the eyelids, and hot compresses can be applied locally after 48 hours to alleviate the swelling. It is recommended that children with significant eyelid redness and swelling should consult a doctor to assess their condition and follow the doctor’s instructions for treatment.