Ingrown hair Symptoms and causes Mayo ClinicCyst from an trichome is an unpleasant ailment which requires adequate treatment. This kind of cyst develops when a hair becomes in within your epidermis, resulting in irritation and possible infection. Managing an ingrown hair cyst caused by an hair properly can help relieve unease and stop further issues. Should you be struggling with a cyst, consulting medical guidance is suggested to treat it properly and prevent any potential risks associated with DIY approaches.