Best ingrown hair treatments according to dermatologistsNodule from an ingrown strand is a painful ailment that needs correct treatment. Such kind of cyst arises when an ingrown hair grows in within the skin, triggering swelling and potential infection. Dealing with a cyst caused by an ingrown strand effectively may help relieve pain and avoid additional issues. If you're having difficulties with an ingrown hair cyst, visiting professional recommendations is advisable to treat it properly and avoid any potential dangers associated with self-treatment.