Redness of the lower eyelid in a baby with a fever may be a sign of acute inflammation due to inflammatory irritation in this area resulting in redness and heat and pain in the tissue mucosa, complicated by systemic symptoms. For localized eyelid redness, the secretion routine should be checked to see if it is a common bacterial infection or a Chlamydia trachomatis or mycoplasma infection. If it is a common bacterial infection, you can choose tobramycin or rifampin drops for anti-inflammatory treatment. Also, take fever-reducing measures according to the measured body temperature. Prevent febrile convulsions.