A sudden formation of an ingrown eyelash is usually due to chronic inflammation in the eyelid margin area, which causes abnormalities in the eyelash follicles. Consequently, the direction of the eyelash growth no longer points straight forward but instead grows toward the eyeball. As the eyeball moves and blinks, the eyelash rubs against the corneal epithelium, causing noticeable symptoms such as a foreign body sensation, stabbing pain, congestion, redness, photophobia, tearing, and a decline in vision. One can visit the ophthalmology department of a hospital for a face-to-face examination and confirmation of the condition. Removing the ingrown eyelash can alleviate the symptoms, but recurrence is possible. If it recurs repeatedly, electrolysis treatment for ingrown eyelashes can be considered. This involves inserting a specially designed probe deep into the follicle of the ingrown eyelash and then passing an electric current through it. The electric current will destroy the follicle of the ingrown eyelash, making it less likely to recur.