The child eyelid redness and swelling may be mosquito bites caused by insect bite dermatitis, may also be blepharitis, conjunctivitis and other diseases caused by the patient need to comply with the doctor’s instructions for medication, general treatment, and so on. 1. Insect bite dermatitis: usually children in the summer by mosquito bites to the eyelids, often appear localized redness and swelling of the symptoms, and can be accompanied by itching, most of the children can subside on their own, the serious can be used loratadine and other anti-allergy treatment. 2. Blepharitis: This is usually due to staphylococcal infection and is associated with poor hygiene of the eyelid area and unclean hands in contact with the eyes. Patients can follow the doctor’s instructions to use levofloxacin eye drops, erythromycin ophthalmic ointment and other antibiotic medication, if the patient’s symptoms are more serious, but also oral cefadroxil, cefuroxime and other antibiotics. 3. Conjunctivitis: it may be due to immune lesions, spread of neighboring organs, microbial infections and other conditions. General bacterial conjunctivitis patients can follow the doctor’s instructions to use tobramycin eye drops and other antibiotic treatment. It is recommended that children with red and swollen eyelids, parents should pay attention to the situation, after excluding physiological phenomena, and actively find out the cause of the disease treatment.