Pilonidal Cyst Causes Symptoms Treatments RemovalLump resulting from an ingrown trichome may be a painful condition that requires adequate treatment. This type of bump develops when an ingrown hair grows back within your epidermis, resulting in inflammation and possible infection. Treating a cyst resulting from an strand properly may help ease discomfort and stop additional issues. Should you be struggling with an ingrown hair cyst, seeking professional advice is advisable to address it adequately and avoid any potential risks associated with treating it on your own.