Ingrown Hair vs Herpes Symptoms Causes TreatmentNodule caused by an hair may be an unpleasant ailment that requires correct treatment. Such kind of lump forms when an ingrown hair becomes back into your epidermis, resulting in inflammation and possible infection. Treating a cyst resulting from an ingrown strand effectively may help relieve pain and prevent more problems. If you're struggling with a cyst, seeking medical advice is advisable to address it properly and prevent any potential risks associated with self-treatment.