Foreign body sensation and itchy eyes may be foreign body irritation, eye fatigue, eye inflammation and other reasons, need to apply tobramycin and other drugs, maintain healthy eye habits and other solutions. 1. Foreign body irritation: Because the cornea contains rich sensory nerve endings, the surface of the eye in contact with mosquitoes, dander, hair, dust and other foreign objects, friction stimulation of the cornea caused by the above symptoms. You can immediately use flowing water or saline to rinse your eyes to solve the problem. 2. Eye fatigue: prolonged viewing of cell phones, computers and other electronic appliances, long-term in the dim or bright light environment, such as eye fatigue, and in serious cases, even dry eye, so the above symptoms will occur. It can be solved by maintaining healthy eye habits and applying eye drops such as heptaphyllum digitalis biside and sodium vitrate when necessary. 3. Inflammation: Bacteria, mycoplasma, chlamydia, viruses and other pathogenic microorganisms cause local inflammatory reaction after infection of the eye, and the inflammatory substances ooze out in large quantities, so the above symptoms will appear. You can apply levofloxacin, tobramycin, dexamethasone, ganciclovir and other eye drops to solve the problem. Foreign body sensation and itchy eyes may be related to a variety of factors, it is recommended to consult a doctor to clarify the diagnosis. Pay attention to the use of medication under the guidance of a physician.