The itchy eyes after receiving false eyelashes are considered to be related to allergic conjunctivitis, blepharitis, contact dermatitis, and so on. 1. Allergic conjunctivitis: allergic conjunctivitis is related to the conjunctival area of the eye being stimulated by allergens such as pollen, dust, animal shoes, etc. If the patient is allergic to the false eyelashes and the glue, it may cause itchy eyes. If the patient is allergic to the false eyelashes and glue, allergic conjunctivitis is induced, and the eyes may be very itchy. Some patients may also be accompanied by redness of the white eyeballs, tearing, increased eye secretions, burning sensation in the eyes and other symptoms. 2. Blepharitis: Blepharitis is related to Staphylococcus aureus infection, squamous lesions, and blepharospasmal gland dysfunction, while visual fatigue and the use of poor-quality cosmetics are the causative factors. Typical symptoms of blepharitis include burning, itching and stinging sensation in the eyes, which may be accompanied by increased eye secretions and congestion of the eyelid margins, and may also be manifested as itchy eyes after connecting false eyelashes. 3. Contact dermatitis: contact dermatitis can also cause some patients to pick up false eyelashes after the eyes are very itchy, may also be accompanied by skin erythema, pimples, swelling and so on. Contact dermatitis is mainly due to skin contact with exogenous substances, thus causing skin irritation or allergic reaction. It is recommended that those who have itchy eyes after receiving false eyelashes should stop receiving false eyelashes and seek medical examination to clarify the cause of the disease and then follow the doctor’s instructions.