Eyelid swelling a lump may be mosquito bites, blepharitis, blepharopharyngitis cysts, etc., the patient can follow the doctor’s instructions to use medication, and in severe cases may require surgical treatment to promote the swelling to subside. 1. Mosquito bites: If the patient’s eyelids are bitten by mosquitoes, it can lead to swelling of the eyelids, the patient needs to avoid touching the affected area with their hands, and can apply cold compresses to the affected area, which will help to alleviate the itchy eyelids. Patients can also use tobramycin dexamethasone eye drops as prescribed by the doctor to control inflammation and promote recovery. 2. blepharitis: blepharitis refers to suppurative inflammation of the eyelid glands, and the patient’s eyelids can be swollen and pimple-like, the patient can use erythromycin ophthalmic ointment and other medications as prescribed by the doctor, to control the inflammation, and to promote the subsidence of abscesses. 3. Blepharoplakia cysts: patients with eyelids swollen with a pimple may also be caused by blepharoplakia cysts, the patient can be localized hot compresses to promote the recession of the cysts, and if the abscess is large, the patient can be surgically resected. It is recommended that patients with eyelid swelling and other discomforts consult a doctor in time to assess their condition and follow the doctor’s instructions for treatment.