The 12 Best Ingrown Hair Treatments of 2023 Verywell HealthNodule resulting from an ingrown trichome may be a painful condition that demands adequate treatment. Such type of lump forms when an ingrown hair grows back into the skin, causing irritation and potential infection. Dealing with an ingrown hair cyst caused by an ingrown hair correctly may help ease unease and prevent additional complications. In case you are having difficulties with an ingrown hair cyst, visiting medical recommendations is advisable to manage it adequately and prevent any potential risks hinged on DIY approaches.