Nodule caused by an hair can be a painful condition that needs adequate treatment. Such form of bump arises when a hair grows back into the skin, causing irritation and potential infection. Dealing with an ingrown hair cyst resulting from an ingrown hair correctly can help ease unease and stop additional issues. If you're dealing with an ingrown hair cyst, visiting medical guidance is suggested to manage it properly and avoid any potential dangers hinged on treating it on your own.