A pilonidal sinus is a small tunnel that develops at the top of the crease in the buttocks. Trapped hair around the buttocks crease can lead to an abscess, and a pilonidal sinus may develop as a ...
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How to treat an ingrown hair cyst

Medically reviewed by Brendan Camp, MD Key Takeaways Ingrown hair cysts can often be treated at home by stopping shaving, keeping the area clean, and using OTC medication.It's essential not to pop ...