Nodule caused by an follicle can be an uncomfortable ailment which demands adequate treatment. Such type of bump forms when an ingrown hair grows back within your epidermis, triggering swelling and potential infection. Dealing with an ingrown hair cyst caused by an strand properly may help alleviate unease and prevent more issues. If you're having difficulties with a cyst, consulting medical recommendations is advisable to manage it properly and prevent any potential dangers associated with self-treatment.