There is no quick fix for red, sore eyes after eyelash extensions. The cause may be conjunctivitis, blepharitis, keratitis and other diseases, need to take medication for the cause. 1. Conjunctivitis: red eye after eyelash extensions may be caused by conjunctivitis. If it is caused by bacterial infection, patients can follow the doctor’s instructions for external antibiotic eye drops or eye ointment, such as tobramycin, azithromycin and so on. If it is due to allergy, oral antihistamine drugs, such as loratadine, cetirizine, etc.. 2. Blepharitis: The redness and pain of the eyeball after eyelash extensions should also be considered to be caused by blepharitis. Patients can use topical antibiotic drugs, such as metronidazole eye ointment, or oral antibiotics and antiparasitic drugs, such as metronidazole, ivermectin and so on. 3. Keratitis: eyeball red pain after eyelash extensions may also be caused by keratitis. Patients can follow the doctor’s instructions oral cefazolin, tobramycin and other antibiotic drugs. There are many reasons for the eyeball red pain after eyelash extensions, it is recommended that patients identify the cause of the disease in a timely manner, and actively cooperate with the doctor to take treatment measures.