Blepharitis, also known as blepharitis, is different from mosquito bites in terms of cause, symptoms, and treatment. 1. Causes: Blepharitis is an acute purulent inflammation of the eyelid glands, usually caused by a bacterial infection without attention to eye hygiene. Mosquito bites are caused by mosquitoes piercing the skin through their mouthparts and injecting venom into the skin. 2. Symptoms: the clinical symptoms of blepharitis are redness, swelling, heat and pain in the eye, edema of the adjacent bulbar conjunctiva, yellow pus head when the pus is confined to the accumulation, and in severe cases, it is also accompanied by large lymph nodes in front of the ear, submandibular lymph nodes, tenderness, generalized chills, fever, and so on. Mosquito bite patients will appear eyelid rash, can also be accompanied by intense itching and other symptoms, usually after scratching the redness and swelling can be more obvious. 3. Treatment: blepharitis patients can follow the doctor’s instructions to use levofloxacin hydrochloride eye drops, erythromycin ophthalmic ointment and other antibiotics for treatment, and if the formation of abscesses, you need to choose the operation for incision and drainage of pus. Mosquito bites generally do not need special treatment, if the symptoms are serious, patients can follow the doctor’s instructions to use glycerine lotion, tobramycin dexamethasone and other drugs for treatment. It is recommended that patients with blepharitis seek prompt medical attention to assess their condition and treat it under the guidance of their doctor.