Folliculitis: This is an inflammation of the hair follicles, which can be caused by bacterial infection, often resulting from the introduction of bacteria into the follicle during glue application for eyelash extensions. The symptoms include redness, swelling, and pus around the eyelashes.

Blepharitis: An inflammation of the eyelids that can be caused by infection, leading to symptoms such as redness, itching, and swelling of the eyelids. Glue application can irritate the eyelids and increase the risk of blepharitis.
Conjunctivitis: Also known as pink eye, this is an infection or inflammation of the outer membrane of the eyeball and the inner eyelid. It can be caused by bacteria, viruses, or allergens, and improper glue application or sharing of makeup tools can spread the infection.
Keratitis: An inflammation of the cornea, which can be caused by infection. While less directly related to glue application on eyelashes, an infected eyelash can potentially lead to keratitis if the infection spreads.

Endophthalmitis: A severe inflammation of the interior of the eye, usually caused by infection. Although rare, it is a medical emergency that can result from the spread of infection from the eyelashes into the eye. It requires immediate treatment to prevent vision loss.
Orbital Cellulitis: An infection of the soft tissues surrounding the eye, which can lead to serious complications, including vision loss and cavernous sinus thrombosis. It is crucial to identify and treat promptly.

Madarosis: A condition characterized by the loss of eyelashes, which can be caused by infection, among other factors. While not directly an infection, it could be a consequence of chronic or severe infection of the eyelashes.
Phthiriasis palpebrarum: An infestation of the eyelashes by lice, which can lead to inflammation and infection. This is less common but should be considered in cases where typical treatments for infection do not resolve the issue.