Some symptoms might include swollen eyelids, tearing, discharge, or redness. (newkidscenter.com)
Eyelash extensions can also lead to an infection of the cornea or eyelid, allergic reactions, or swollen eyelids if you're sensitive to the adhesive, which can contain irritating chemicals (and the ingredients in the glues and lash removers aren't strictly regulated). (health.com)
I have been waking up with swollen eyelids and bags under my eyes as well as swollen nasal passages and congestion for four months now. (wisegeekhealth.com)