Ingrown Hair Cyst Signs and Safe Removal Verywell HealthBump resulting from an trichome can be an unpleasant issue that demands adequate treatment. Such kind of lump forms when a hair becomes back within your epidermis, causing irritation and possible infection. Dealing with an ingrown hair cyst resulting from an strand properly can help alleviate unease and avoid additional problems. Should you be struggling with an ingrown hair cyst, visiting professional recommendations is advisable to manage it properly and prevent any potential risks hinged on treating it on your own.