Lump caused by a hair is a painful ailment that requires correct treatment. Such type of bump develops when an ingrown hair becomes back into the skin, causing irritation and potential infection. Dealing with an ingrown hair cyst caused by an ingrown hair correctly could help ease unease and avoid further issues. In case you are dealing with an ingrown hair cyst, visiting medical guidance is recommended to manage it properly and avoid any potential hazards associated with self-treatment.