Redness, swelling and pain in the eyes after eyelash extensions are mainly considered to be allergies, infections and other inflammatory diseases, and need to be treated with levofloxacin, olopatadine hydrochloride and other treatments according to the situation. Some people’s eyes are red, swollen and painful after eyelash extensions due to their personal constitution and the organization they chose, mainly because they are allergic to the relevant supplies or unhygienic utensils in the place, resulting in allergies, infections and other inflammatory manifestations. For the infection caused by redness, swelling and pain in the eyes after eyelash extensions need to consult a doctor in a timely manner, under the guidance of the doctor’s advice to be levofloxacin eye drops and other anti-infective treatment is not recommended to deal with it on their own, especially in the case of pus and other conditions, the systemic manifestations of the obvious or even the need for emergency medical care. For allergies, it is recommended to remove and clean the eyelids and other parts of the eye, and to apply local cold compresses and orotidine hydrochloride eye drops for anti-allergy treatment. It is recommended that eyelash extensions to choose a professional health institutions, after receiving the obvious redness, swelling and pain in the eyes and other conditions to consult a doctor in a timely manner, improve the slit lamp microscope and other auxiliary examination to be targeted treatment, and comply with the doctor’s instructions to use medication.