Ingrown Hair vs Herpes Key Differences Bump from an ingrown follicle can be an unpleasant ailment which requires adequate treatment. This form of bump arises when a hair grows in within your epidermis, resulting in irritation and potential infection. Dealing with an ingrown hair cyst caused by an ingrown hair effectively may help relieve unease and avoid further complications. Should you be having difficulties with an ingrown hair cyst, visiting medical recommendations is recommended to address it adequately and prevent any potential risks associated with DIY approaches.