A boil looks like a large pimple—a swollen ring of red ... Lancing is also used to treat swollen, infected cysts. The only way to ensure cysts don't grow back is surgery to remove them entirely.
Spontaneous Eruption of an Impacted Second Mandibular Molar after Marsupialization of a Large Dentigerous Cyst in an 11-Year-Old: A Case Report Dentigerous cysts are developmental odontogenic cysts ...